The most significant relic of this species is an upper femur that reveals indications of bone development typical of a biped, indicating that Orrorin tugenensis individuals likely walked upright on two legs while simultaneously climbing trees.
A hypothetical early Hominin species called Orrorin tugenensis was identified in 2000 and is thought to have existed between 6.1 and 5.7 million years ago. How Orrorin is connected to contemporary humans is unknown. Although this remains the most popular theory of human evolution as of 2012, its discovery was used to refute the idea that australopithecines are human forebears. The name of the only classified species, O. tugenensis, comes from the Tugen Hills in Kenya, where the first fossil was discovered in 2000. The name of the genus Orrorin (plural Orroriek) means "original man" in Tugen. Twenty fossils of the species have been discovered as of 2007.
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a colorless, odorless, gaseous element that is found in air and water. it is necessary for humans, animals and plants to live.
Answer:
oxygen
Explanation:
Oxygen is found in air comprising about 21%
It is also found in water, with the chemical formula [tex]H_{2} O[/tex]
Oxygen is necessary to life
given that about 25% of the mammalian genome is associated with genes, including introns and regulatory sequence, what would be the approximate average length of dna per gene if the genome contained 20,000 genes?
If there were 20,000 genes in the mammalian genome, with introns and regulatory sequences accounting for approximately 25% of the genome, the average DNA length would be 40,000 base pairs.
One cell's DNA could be stretched out to be around 2 meters long, and if all of your cells' DNA were combined, it would be rough twice as wide as the Solar System.
The DNA of a human cell is about 6 feet long. Consider that each human has approximately 10 trillion cells (this is a lowball estimate). This implies that each person contains roughly 10 billion miles or 60 trillion feet of DNA.
Thus, if there were 20,000 genes in the mammalian genome and 25% of the genome comprised genes, introns, and regulatory sequences, then the average length of DNA for each gene would be 40,000 base pairs.
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A farmer is trying to increase the diversity of corn kernel color in his crops. If the trait for corn color is controlled by two alleles and yellow corn (b) is completely dominant over white corn (b), which combination of corn should he cross to get the highest variety of genotypes in the next generation?.
The combination of corn that must be refined to get the highest genotype variety in the next generation is Bb x Bb
Yellow is the dominant color which is denoted by an uppercase letter with genotype B. And yellow is the recessive color which is denoted by a lowercase letter with genotype b. If farmers are increasing the color diversity of corn seeds, the phenotypes that must be produced must be more yellow than white.
A cross of the Bb x Bb genotype will produce a phenotype ratio of 3 yellow : 1 white.Crossing of the BB x BB genotypes will produce a phenotype ratio of 1 yellow.Crossing of genotypes Bb x bb will produce the same phenotype ratio.Crosses of the BB x bb genotypes will produce a phenotype ratio of 1 yellow.Of the possible crosses above, the phenotype that produces more yellow is the genotype Bb x Bb cross.
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You are a public health official investigating an outbreak of Salmonella. To detect current cases you choose to examine patients blood for the ____________ antibody class
As a representative of public health, you are looking into a Salmonella outbreak. You decide to check the blood of the patient for the IgM antibody class in order to find active cases.
What one of the following describes inflammation?Inflammation manifests as redness, swelling, heat, discomfort, and loss of tissue function at the tissue level and is brought on by local immunological, vascular, and inflammatory cell responses to infection or damage.
Which of the following is not a component of the inflammatory process?Histamines are minute chemical substances that function as inflammatory response's messenger molecules. The right response is, therefore, Option A. As antibodies are involved in humoral immunity, they are not a part of the inflammatory response.
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arrange the primary brain vesicles in the correct anterior to posterior order. a: rhombencephalon b: mesencephalon c: prosencephalon
primary brain vesicles in the correct anterior to posterior order is prosencephalon, mesencephalon and rhombencephalon
The bulge-like characteristics of the neural tube's early vertebrate development are known as brain vesicles. Three main brain vesicles, the prosencephalon, mesencephalon, and rhombencephalon, are present at birth. The prosencephalon is divided into the telencephalon and diencephalon, and the rhombencephalon is divided into the metencephalon and myelencephalon. These grow into five secondary brain vesicles.
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Svetlana learned that there are organisms that live deep in the ocean that produce food using energy stored in chemicals.
a. True
b. False
Deep-water organisms use the process of chemosynthesis because they lack access to sunlight, which is necessary for them to manufacture their food.
Explain about the chemosynthesis?Bacteria produce food (glucose) by the process of chemosynthesis, which substitutes chemicals for sunlight as the energy source. Where there is no sunshine, chemosynthetic organisms thrive around hydrothermal vents and methane seeps.
Organisms that carry out chemosynthesis include chemoautotrophs. They consist of specific bacterial groupings like the sulfur-oxidizing gamma proteobacteria, epsilon proteobacteria, and neutrophilic iron-oxidizing bacteria as well as certain archaea like the methanogenic archaea.
Chemosynthesis is the conversion of carbon (often carbon dioxide or methane) into organic matter utilizing inorganic molecules (hydrogen or hydrogen sulphide) or methane as the energy source. Plant photosynthesis is the primary method through which the majority of energy is produced.
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HELP!!!!!!!! When oxygenated blood leaves the heart through the aorta, where does it travel to next?
A. to the body
B. to the lungs
C. to the heart
Answer: b- to the lungs
Explanation:
Answer:
When oxygenated blood leaves the heart through the aorta, it travels to the body. The aorta is the largest artery in the human body, and it carries oxygenated blood from the left ventricle of the heart to the rest of the body. The aorta branches off into smaller arteries, which distribute the oxygenated blood to the various organs and tissues of the body. This allows the cells of the body to use the oxygen in the blood to produce energy and perform essential functions.
In contrast, deoxygenated blood returns to the heart through the veins, and is then pumped to the lungs where it is oxygenated. The oxygenated blood then returns to the heart through the pulmonary artery and is pumped out to the body through the aorta. This is known as the cardiovascular system, and it is essential for maintaining the oxygen supply to the cells of the body.
Explanation:
__________ is a highly conserved nucleotide sequence that has been found in developmental regulatory genes in many diverse organisms.
A: An Alu element
B: An L1 sequence
C: A homeobox
D: A homeodomain
E: A retrotransposon
Answer: A homeobox
Explanation:
if an individual has abnormal microtubules, due to a hereditary condition, in which organs or tissues would you expect dysfunction?
You might anticipate malfunction in the sperm, larynx, and trachea organs and tissues if a person has aberrant microtubules as a result of a hereditary illness.
Male reproductive cells, often known as sperm or spermatozoa, are generated by most mammals. Sperm are flagellated, which means they have a whip-like tail and a pair of legs, with the exception of nematode worms, decapods (such as crayfish), diplopods, and mites. The pharynx above and the trachea below are connected by the larynx, often known as the voice box or glottis. It spans the fourth through sixth levels of the vertebral column. Sublarynx, larynx, and supralarynx are the three components that make up the larynx. Nine cartilages make up its structure, and they are joined by muscles and ligaments.
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large air tubes leading from the trachea to the lungs which convey air to andfrom the lungs; consist of primary, secondary or tertiary and right and leftbronchioles
primary, secondary, or tertiary, as well as right and left, large air tubes that connect the trachea towards the lungs and carry air there and back Bronch ioles are bronchi
What use do bronchi serve?Air travels from and to your lungs through your bronchi. The bronchi also aid in hydrating the air that breathe and filtering out foreign objects. Mucus-producing cells line the interior of your airways.
What other names do the bronchi go by?When the bronchi are too thin for cartilage to hold them, they are referred to as bronchioles. In the bronchi, there is no gas exchange. Bronchus. The bronchi serve as conduits for air entering the lungs. Part of the lower respiratory tract are the bronchi.
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glycolysis, which provides energy by breaking down carbohydrates like glucose, relates to activities lasting __________.
Glycolysis, which provides energy by breaking down carbohydrates like glucose, relates to activities lasting ATP, NADH, and water.
The process by which glucose is broken down to provide energy is known as glycolysis. It generates two pyruvate molecules, ATP, NADH, and water. There is no need for oxygen throughout the process, which occurs in the cytoplasm of a cell. Both aerobic and anaerobic creatures experience it.The first stage of cellular respiration, which takes place in all organisms, is called glycolysis. The Krebs cycle comes after glycolysis during aerobic respiration. Small amounts of ATP are produced by the cells in the absence of oxygen as fermentation follows glycolysis.It is the procedure through which a glucose molecule is split into two pyruvate molecules. Animal and plant cells cytoplasm are where the process occurs.To know more about glycolysis check the below link:
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Select the statement that correctly distinguishes between relay proteins and second messengers in signal transduction pathways. Select the statement that correctly distinguishes between relay proteins and second messengers in signal transduction pathways.
1-Signal transduction pathways are multistep pathways that include relay proteins and small, nonprotein, water-soluble molecules or ions called second messengers.
2-Relay proteins are the "first messengers," the extracellular signaling molecules that bind to the membrane receptor. The signal transduction pathways are then formed by the second messengers, which are the relay molecules that respond to the first messengers.
3-Signal transduction pathways are multistep pathways in which relay proteins and second messengers alternate.
Signal transduction pathways are multistep pathways that include relay proteins and small, nonprotein, water-soluble molecules or ions called second messengers.
The process by which a chemical or physical signal is transmitted through a cell as a series of molecular events, most commonly protein phosphorylation catalyzed by protein kinases, which ultimately results in a cellular response is known as signal transduction. When signaling pathways interact, they form networks that allow cellular responses to be coordinated, frequently through combinatorial signaling events.
Such responses at the molecular level include changes in gene transcription or translation, as well as post-translational and conformational changes in proteins, as well as changes in their location. These molecular events are the fundamental mechanisms that govern cell growth, proliferation, metabolism, and a variety of other processes. Signal transduction pathways regulate cell communication in a variety of ways in multicellular organisms.
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Which of the following is not used during digestion options: mouth. Lungs . stomach . small intestine
Answer:
The correct option is D Spleen
Explanation:
The spleen plays multiple supporting roles in the body. It acts as a filter for blood as part of the immune system. The spleen is not part of the digestive system, however, is connected to the blood vessels of both the stomach and the pancreas.
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BR) nts A scientist crosses morning glory plants of different flower colors to determine how flower color is passed on to offspring. The results of three crosses are shown in the table. Cross W X Z Flower Color in Morning Glory Plants Flower Color of Parent 2 purple red red Flower Color of Parent 1 purple red purple Flower Color of Offspring purple red, purple The scientist crosses an offspring from cross X with an offspring from cross Z. What are the expected results of this cross? 50% of plants with red flowers, 50% of plants with purple flowers O 75% of plants with purple flowers, 25% of plants with red flowers 100% of plants with red flowers 100% of plants with purple flowers
Complete dominance occurs when a dominant allele hides the expression of the recessive allele. Option A. 50% of plants with red flowers, 50% of plants with purple flowers.
To answer this question, we will assume a single gene codes for flower color and it expresses complete dominance.
What is complete dominance?Complete dominance is an inheritance pattern in which a dominant allele, coding for a dominant phenotype, completely covers the expression of the recessive allele.
This is evident in heterozygous individuals in which both alleles are present, but only the dominant phenotype is expressed.
Cross W
Parents) Purple x Purple
F1) Purple
Cross X
Parents) Red x Red
F1) Red
Cross Z
Parents) Purple x Red
F1) Purple
Purple seems to be the dominant phenotype because when crossing red and purple individuals, only purple flowers are produced.
Assuming
a diallelic gene complete dominance dominant phenotype is purpleAlleles
P is the dominant allele that codes for purplep is the recessive allele that codes for redGenotypes and Phenotypes
PP and Pp are plants with purpe flowerspp are plants with red flowers.When crossing an offspring from cross X (red - pp) with an offspring from cross Z (pruple - Pp), we expect to produce 50% of plants with red flowers and 50% of plants with purple flowers.
Cross: an offspring from cross X with an offspring from cross Z
Parentals) pp x Pp
Gametes) p p P p
Punnett square) P p
p Pp pp
p Pp pp
F2) 50% Pp expressing purple fowers
50% pp expressing red flowers.
In conclusion, the correct option is A. 50% of plants with red flowers, 50% of plants with purple flowers.
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Complete question
A scientist crosses morning glory plants of different flower colors to determine how flower color is passed on to offspring.
The results of three crosses are shown in the table. (Hint: You must determine which color is dominant using the chart to answer the question.)
CROSS PARENT 1 PARENT 2 OFFSPRING
W Purple Purple Purple
X Red Red Red
Z Purple Red Purple
The scientist crosses an offspring from cross X with an offspring from cross Z.
What are the expected results of this cross,
A) 50% of plants with red flowers, 50% of plants with purple flowers
B) 75% of plants with purple flowers, 25% of plants with red flowers
C) 100% of plants with red flowers
D) 100% of plants with purple flowers
1. Explain ocean acidification in the past since Industrial Revolution
2. Explain acidification in todays world
3. Why be concerned with a small change in pH?
4. What are issues with lower pH?
6. What is the impact?
7. What is being done to reduce ocean acidification?
Human activity has led to an increase in atmospheric carbon dioxide (CO2) content over more than 200 years since the start of the industrial revolution. Surface ocean waters' pH has dropped by 0.1 pH units throughout this time.
What is ocean acidification?
A number of chemical processes take place when CO2 is absorbed by seawater, increasing the concentration of hydrogen ions. Due to this rise in acidity, carbonate ions become less prevalent and the seawater becomes more basic.
2. Explain acidification in today's world?
The entire ocean, including coastal estuaries and streams, is currently being affected by ocean acidification.
3. Why be concerned with a small change in pH?
Small pH variations can affect a wide variety of chemical reactions, including some that are necessary for life.
4. What are issues with lower pH?
Heavy metals from the environment are more prone to leach at lower pH levels. Thus, there is an increase in the amount of heavy metals in the water.
5.What is the impact?
It is anticipated that many marine species would suffer as a result of ocean acidification. This might change how marine food chains work and how humans get their food.
6. What is being done to reduce ocean acidification?
Acting on climate change and finding solutions to drastically reduce the use of fossil fuels is the most efficient method to stop ocean acidification.
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In what era will you find the fossils of primitive horses?
Answer:55 million years ago to around 45 million years ago
Explanation:
explanation is not really necessary lol
lizards also thermoregulate and, as in humans, thermoregulation in lizards involves negative feedback. lizards, however, are ectotherms and gain most of their heat from external sources. therefore, they often use behavioral mechanisms to adjust their body temperature. for example, if a lizard's body temperature drops below its normal range, the lizard may seek a sunny resting spot to warm up. what are the stimulus and the response in this example? drag the phrases on the left to complete the sentence on the right. not all phrases will be used.
The behavior of looking for a sunny area is the response to the stimulus of decreased body temperature.
What physiological reaction occurs in many animals when they become too hot?Water from the skin, mouth, and nose of land animals is frequently lost to evaporation into the atmosphere. Evaporation can serve as a cooling technique by removing heat. For instance, many mammals have the ability to improve evaporative cooling in response to high body temperatures by triggering systems like sweating and panting.
How does the body temperature of lizards fluctuate?Many ectotherms move to warmer or cooler areas of their surroundings to control their body temperatures. For example, in order to maintain their body temperatures within a certain range, lizards and snakes alternate between lazing in the sun and resting in the shade.
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Though scientists previously believed that domestic dogs evolved from canis ______, the gray wolf, genetic analysis indicates they actually evolved from a now extinct species.
Though scientists previously believed that domestic dogs evolved from canis lupus, the gray wolf, genetic analysis indicates they actually evolved from a now extinct species.
In other words, dogs as we know them are tamed wolves. The dog, Canis familiaris, is a direct ancestor of the grey wolf, Canis lupus. In addition to their altered behaviours, domestic dogs also differ physically from wolves in that they are typically smaller, have shorter muzzles, and have fewer teeth.Researchers examined the DNA of three canines that were discovered at 4,700–7,000-year-old archaeological sites in Germany and Ireland.
Modern European dogs are descended from the canines of antiquity. Scientists were able to date the domestication of dogs to between 20,000 and 40,000 years ago by examining the rates of change to the DNA from the earliest specimen.
Hence, modern dog are domesticated wolf.
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There is a certain grammar to the genetic code, orrules to follow so that the message can be
effectively translated from DNA into functional
protein.
Codons are y base "words" that code for
specific amino acids. They are
and never
the words.
Codons are 3 base "words" that code for specific amino acids. They are non-overlapping and never have gaps between the word.
The genetic code (codon) is a series of nucleotide coding sequences in DNA or RNA to determine the sequence of amino acids during protein synthesis. The genetic code used today is a code composed of 3 nitrogenous bases called a triplet codon. There are 4 types of nitrogenous bases namely adenine, uracil, cytosine, and guanine. An example of a codon is the nucleotide sequence ATG (AUG in RNA) which specifies the amino acid methionine.
DNA serves as a pattern for making mRNA, and in turn messenger RNA serves as a pattern for making certain proteins. DNA and the corresponding messenger RNA are made up of a series of bases. In RNA, these bases are often labeled with the letters A, U, C, and G.
The question completely seen picture.
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__________ is a highly conserved nucleotide sequence that has been found in developmental regulatory genes in many diverse organisms.
A homeobox is a highly conserved nucleotide sequence that has been found in developmental regulatory genes in many diverse organisms.
A gene is the fundamental physical and purposeful unit of heredity. Some genes act as instructions to make molecules referred to as proteins. but, many genes do now not code for proteins.
Our genes incorporate instructions that inform your cells to make molecules referred to as proteins. Every gene includes commands that determine your functions, together with eye color, hair shade, and height.
Few genes act as commands to make molecules referred to as proteins. In human beings, genes vary in length from a few hundred DNA bases to extra than 2 million bases.
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In a certain signal transduction pathway, the binding of an extracellular molecule to a cell-surface protein results in a rapid increase in the concentration of cyclic AMP inside the cell. The cyclic AMP binds to and activates cytosolic enzymes that then activate other enzymes in the cell. Which of the following statements best describes the role of cyclic AMP in this pathway?
The role of cyclic AMP is that it acts as a second messenger that helps relay and amplify the signal within the cell.
The process by which a chemical or physical signal is transmitted through a cell as a series of molecular events, most commonly protein phosphorylation catalyzed by protein kinases, which ultimately results in a cellular response is known as signal transduction. Proteins that detect stimuli are commonly referred to as receptors, though the term sensor is used in some cases. A biochemical cascade is a chain of biochemical events triggered by ligand binding (or signal sensing) in a receptor.
When signaling pathways interact, they form networks that allow cellular responses to be coordinated, frequently through combinatorial signaling events. Such responses at the molecular level include changes in gene transcription or translation, as well as post-translational and conformational changes in proteins, as well as changes in their location. These molecular events are the fundamental mechanisms that govern cell growth, proliferation, metabolism, and a variety of other processes. Signal transduction pathways regulate cell communication in a variety of ways in multicellular organisms.
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ligaments connect bones together and withstand a lot of stress. what type of connective tissue should you expect ligaments to contain?
Tendons and ligaments are made of dense connective tissue, which contains collagen fibers in greater density. The specialized connective tissues of adipose tissue, cartilage, bone, blood, and lymph are only a few examples.
What kind of tissue does a ligament consist of?Ligaments are formed of connective tissue, which contains numerous, powerful collagen fibers. The body contains them in a variety of sizes and forms.
What is the supporting connective tissue that holds bones together at joints?Ligaments. Strong ligaments, which are resilient, elastomeric bands of connective tissue, surround the joint to provide stability and control movement. Ligaments link bones together.
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A specialized plasmid vector that has an e.coli promoter upstream of a restriction site into which foreign genes can be inserted is known as a?
Plasmid vector that has an E.coli promoter at the top of the restriction site known as expression vector.
Plasmids are extrachromosomal DNA that is usually circular in shape, and these plasmids are found in bacterial cells. Plasmids as vectors are often used to reproduce target genes that express certain phenotypes such as antibiotic resistance, receptor genes, or other proteins. Plasmids replicate independently of the organism's genome and can be engineered to become vector clones.
In order to create a recombinant plasmid that contains the desired foreign DNA properties, splicing of the foreign DNA with the existing plasmid is carried out. Plasmid cutting to be used as a vector with the same restriction enzyme, namely E. Coli. This E.coli motor plasmid vector is called an expression vector. Expression vectors are a type of cloning vector, which contain expression signals that match gene expression maximally. Expression vectors consist of regulatory sequences such as enhancers and promoter regions, which lead to efficient gene expression.
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which of the following is not a biome: a. tropical dry forest b. tropical rainforest c. temperate rainforest d. taiga e. temperate dry forest
The correct option is C : Temperate rainforest ,A forest in a temperate environment with significant annual rainfall is known as a temperate rainforest.
Coniferous trees (which do not lose their leaves) and deciduous trees can both be found in these kinds of rainforests (which lose their leaves on an annual basis).
Aquatic, grassland, forest, desert, and tundra biomes are the five main types, while some of these can be further broken down into more specialized groups, such as freshwater, marine, savanna, tropical rainforest, temperate rainforest, and taiga.
They are not regarded as a biome because they lack a variety of plants and animals, and since the majority of life there is aquatic rather than terrestrial.
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How do transposable elements contribute to genome evolution?
a. They decrease the chances for recombination of genes during meiosis.
b. They carry entire genes or individual exons to new locations.
c. They maintain the function of control genes.
d. They cause unequal crossing over during meiosis.
DNA sequences known as transposable elements (TEs) have the ability to integrate into the genome at a different location within the cell of origin. Their shifting placements can occasionally cause or undo mutations, changing the genotype of the cell. Thus, option B is correct.
What role of transposable elements in genome evolution?DNA sequences called transposable elements (TEs) can migrate around inside genomes. The transposition of TEs has been demonstrated to change regulatory networks, gene expression, and genome organization in eukaryotic organisms.
Therefore, A transposon will probably harm a gene if it inserts itself into it. The activity of a gene can be destroyed or changed via insertion into its exons, introns, or even into the surrounding DNA (which may contain promoters and enhancers).
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Theory of Evolution development History of Evolutionary Theory
The theory of evolution is primarily based totally at the concept that every one species are associated and progressively extrade over time.
In a populace which influences the bodily characteristics (phenotype) of an organismCharles Darwin is typically noted because the individual who “discovered” evolution. But, the historic report suggests that kind of seventy exceptional people posted paintings on the subject of evolution among 1748 and 1859, the yr that Darwin posted On the Origin of Species.
1858 Charles Darwin and Alfred Russel Wallace posted a brand new evolutionary concept, defined in element in Darwin's On the Origin of Species (1859). Darwin's concept, at first referred to as descent with amendment is understood contemporarily as Darwinism or Darwinian concept.
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what term is used to describe a period characterized by very high rates of speciation?
The term used to describe a period characterized by very high rates of speciation is adaptive radiation.
Adaptive Radiation: A Period of High Rates of SpeciationAdaptive radiation is a term used to describe a period characterized by very high rates of speciation.This phenomenon occurs when a new species evolves in response to a change in their environment. This can involve the adaptation of a single species to multiple environments, or the development of multiple distinct species from a single ancestral species.
During adaptive radiation, the species undergoes rapid evolution and diversification, allowing them to adapt to and fill different ecological niches. This process is essential for the survival and diversification of species, and is an important part of the evolution of life on earth.
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a mutation that occurs in a somatic cell in an organism will most likely be transferred to
Non-reproductive cells experience somatic mutations, which are transmitted through the process of mitosis to daughter cells but not to the progeny during sexual reproduction.
Do somatic mutations transfer to progeny?Any cellular change that takes place in somatic tissues following fertilization is referred to as a somatic mutation.Since these mutations will not affect the germline, they cannot be passed on to future generations.
How do somatic cells become mutated?Somatic mutations can frequently be brought on by environmental conditions, like exposure to UV rays or specific chemicals.From the earliest cleavage of the fertilized egg to a cell divisions that replace cells inside a senile person, somatic mutations can happen in any cell division.
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WILL GIVE BRAINLYIEST JUST PLEASE HELP Which of the following is NOT an example of a trait?
A)
eye color
B)
ear shape
C)
species
D)
body height
Answer: I believe it would be ear shape.
What fraction of the first glider's initial kinetic energy is transformed into thermal energy in this collision?.
1/2 fraction of the first glider's initial kinetic energy is transformed into thermal energy in this collision.
The initial KE (kinetic energy) of the system is
KE₁ = (1/2)mu²
After an inelastic collision, the two masses stick together.
Conservation of momentum requires that
m × u = 2m × v
Therefore,
v = u/2
The final KE is
KE₂ = (1/2)(2m)v²
= m(u/2)²
= (1/4)mu²
= (1/2) KE₁
The loss in KE is
KE₁ - KE₂ = (1/2) KE₁.
Conservation of energy requires that the loss in KE be accounted for as thermal energy.
Hence 1/2 is the answer.
Diagram is attached to elaborate the collision.
Your question is incomplete most probably your full question was;
An air-track glider undergoes a perfectly inelastic collision with an identical glider that is initially at rest.
What fraction of the first glider's initial kinetic energy is transformed into thermal energy in this collision?
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