The animals that will be present abundantly in the tall grass prairie ecosystem are: (2) White-tailed deer and cottontail rabbits.
Ecosystem can be defined as the surroundings and the species together of an area. Thus, every ecosystem has its own specific type of environmental conditions and also the plant and animal species. The examples of ecosystem are: rainforest, savanna, steppe, taiga, tundra, etc.
Prairies are a type of grasslands and are also an example of ecosystem. The prairies are long stretches of flat lands that contain grasses with very few trees. The prairies are abundant in the regions of North America.
The question is incomplete, the complete question is:
Which of the following organisms is would you expect to be most abundant in the tall grass prairie ecosystem?
Grasses and flowering plantsWhite-tailed deer and cottontail rabbitsBobcats and CoyotesHarriers and kestrelsTo know more about prairies, here
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Choose an ecosystem: Tropical Rain Forest, Temperate Rain Forest, Grasslands,
Desert, Tundra, Fresh Water, Coral Reefs, or Chemosynthesis. Draw a food chain that
ncludes, sun/chemicals, producer, primary consumer, secondary consumer, tertiary
consumer, and a decomposer. Title and label your food chain.
Answer:
The food chain describes who eats whom in the wild. Every living thing—from one-celled algae to giant blue whales —needs food to survive. Each food chain is a possible pathway that energy and nutrients can follow through the ecosystem. For example, grass produces its own food from sunlight. A rabbit eats the grass.
Explanation:
you are interested in learning the age of an individual based on their skeleton. which part of the anatomy is most likely to indicate age?
The part of human anatomy that is most likely to indicate the age of an individual are the teeth and bones.
Even unknown people's biological profiles cannot be entirely recreated in the absence of age information. Forensic anthropologists use skeletal markers for the age-related processes of bone resorption, deposition, and remodeling to establish an individual's age.
Estimating the age of adults presents a challenging task for forensic anthropologists due to the complexity, individual variability, and vast variety of external factors impacting it. Instead of using a specific age, anthropologists estimate ages using an age range.
This is explained by the fact that various biological changes take place for younger people at predictable rates and times. When a person reaches biological adulthood, both the volume and the speed of developmental change decrease.
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Immediately after putting on a shirt, your skin might feel itchy. However, this perception soon fades due to _____.
Your skin could itch as soon as you put on a shirt. Then, as a result of sensory adaptation, this perception quickly vanishes.
What in ap psychology is sensory adaptation?
With time, an observer loses sensitivity to a stimulus, which is referred to as sensory adaptation. according to signal detection, a subject's reaction to a stimulus is dependent on both sensitivity and decision criteria. changing physical signals into brain signals is a process known as transduction.
In psychology, what is a good illustration of adaptation?
Most frequently, a propensity for a particular behavior or full dose is referred to as a psychological adaption. for instance, a fear with snakes could be a psychological adaption that saved someone from harm or death after being bitten by one.
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what analysis tool does not include PCR?
A: STR profiling
B: SNP analysis
C: Y-STR analysis
D: electrophoresis
Electrophoresis tool is used for PCR result analysis. thus option D is correct.
what is electrophoresis?
Electrophoresis has the ability to pass charged molecules in an electric field, it is the separation of proteins which is usually accomplished using polyacrylamide gel electrophoresis (PAGE).
In this process where the proteins are driven by an applied current through a gel based matrix.
these polyacrylamide gel is formed as a thin slab between two glass plates or as a cylinder within a glass tube.
The primary objective of electrophoresis is to separate DNA molecules based on their size which may be completed on a gene of interest prior to electrophoresis.
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Answer:
SNP analysis
Explanation:
Correct on my exam
What is the difference between ground layering and air layering?
Layering is a method in which a branch of the plant is covered with some material and supplied water to produce roots.
They are done in two ways:
1.) Ground layering
2.) Air layering
Ground layering or mound layering is the typical propagation technique for the popular Malling -Merton series of clonal apple root stocks, in which the original plants are set in the ground with the stem nearly horizontal, which forces side buds to grow upward.
Air layering is a method of propagating new trees and shrubs from stems still attached to the parent plant. The stem is wrapped with damp moss to encourage roots to form.
The main difference between them is for soil layering, lower stems are bent to the ground and covered with moist soil of good quality. For air layering, a branch is deeply slit and the wound is covered with a ball of earth or moss and kept moist until roots develop; the branch is then severed and transplanted.
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an island reports that in the year 2000 there were 240 babies born. that same year, 100 individuals died. what is the growth rate for this island
Population growth rate of the island is 140 individuals.
Population growth rate is annual average rate of change of population size, for a given country, territory, or geographic area, during a specified period.
Population growth rate is mainly considered as the difference in birth and death rate in the population . Population growth rate can be calculated by finding the difference between the initial population at one time , and then dividing the initial population and dividing by 1 .Population growth can be of two types exponential growth and logistics growth .
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Which option identifies the next step performed in the following scenario?
Selena is redesigning an existing product to reduce its carbon footprint. She has defined the purpose of her project and determined the key problem to address.
A. Determine the implications of the new design.
B. List assumptions she made about the new design.
C. Gather information related to the new design.
D. Interpret the results of the new design.
The next step in the problem solving process is to gather information related to the new design.
What is problem solving?In the real world we come up everyday against one problem or another and we need to solve the problem in the best possible way. The solutions to the problem would come through a well thought out process.
Now in the world of science there are always a lot of problems that we need to solve and these would require a sequence of steps and they may include the identification as well as definition of the problem to be solved.
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the vegetable grow below the ground but are not the roots of the plants
Root vegetables grow underground(below the ground) are considered as roots.
What is root vegetables?
They are generally storage organs, enlarged to store energy in the form of carbohydrates. Root vegetables comes in all shapes, colours, and sizes. Root vegetables are easy to grow and in the case of an abundant fall harvest, reap plentiful rewards.
Some of the examples of root vegetables are:Bulbs which include fennel and onions, corms which includes water chestnut, rhizomes which include beets and carrots , tuberous roots include sweet potato and yucca, tubers includes potatoes .
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Asbestos fibers cause a cancer called mesothelioma in humans. The fibers kill cells that line lung
tissue by causing programmed-cell death. When cells die this way, they release a chemical, HMG1,
which causes an inflammatory response in other cells. During this inflammatory response, cells release
chemicals that promote tumor growth. What conclusion can you draw about the chemicals released in
the inflammatory response?
A. They decrease the amount of HMG1 in a feedback loop.
B. They increase the amount of HMG1 in a feedback loop.
C. They disrupt the normal circadian rhythms.
D. They disrupt the normal cell cycle.
The conclusion that we can draw about the chemicals released in the inflammatory response is that HMG1 acts as a mediator of acute lung inflammation might leads to lung cancer, such as mesothelioma. The presence of HMG1 causes cells to release certain chemicals that promote tumor growth.
What is Asbestos Fibers and Mesothelioma?Asbestos has a crystalline category of naturally occurring silicate fibers. These fibers are only visible under a microscope. Asbestos harms lung tissue cells by inducing programmed cell death.
When cells die in this way, they produce HMG1 (high mobility group proteins that promotes an in other cells. The presence of HMG1 causes cells to release certain chemicals that inflammatory reactionpromote tumor growth.
Therefore, The presence of HMG1 causes cells to release certain chemicals that promote tumor growth.
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true/false: reabsorption of water into the capillaries is primarily due to active transport. group of answer choices true false
The given statement is false.
The correct statement is : Reabsorption of water into the capillaries is primarily due to Osmosis.
When the cohesive forces between the water molecules are greater than the adhesion to the walls, capillary action results. The leading water molecules drag the nearby water molecules behind them due to the same attraction between water molecules that creates surface tension.
Reabsorption happens when fluid is drawn back into capillaries from the interstitial fluid as a result of osmotic pressure.
Osmotic pressure pulls fluid back into the capillaries, as opposed to hydrostatic pressure, which pushes fluid out.
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give an explanation about the importance of these processes (photosynthesis and cellular respiration) in cycling nutrients through the ecosystem of the earth
Answer: because it is
Explanation:
right?
myc activates and mad represses transcription through recruiting a coactivator and a corepressor, respectively. what kind of enzyme is recruited by each?
MYC hires HAT, while Mad hires Each one attracts the HDAC enzyme. When MYC recruits a coactivator and a corepressor, respectively, to activate and repress transcription.
How is an enzyme defined?Enzymes, a type of biological catalyst, are almost invariably proteins. It quickens a certain chemical process in the cell. It quickens a certain chemical process in the cell. The enzyme is continuously employed during the reaction and is not destroyed.
What is an example of an enzyme?For instance, the enzyme pepsin is a vital component of gastric fluids and aids in the breakdown of food particles in the stomach. Similar to how amylase, an enzyme found in saliva, turns starch into sugar to aid in the first stages of digestion. The thrombin enzyme is employed in medicine to speed up the healing of wounds.
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does the seas star possess a heart or circulatory system? how do you suppose nutrients and oxygen are distributed to the body tissues?
Answer:
Sea stars have a very unusual circulatory system. They do not pump blood around their bodies. Instead, they use seawater and a complex water vascular system to keep things moving.
Explanation:
No problem :)
Which of these mollusks are:a) gastropods?b) bivalves?c) cephalopods?List their characteristics.
Answer:
snail and slug and nudibranch are gastropods
the clam and oyster are bivalves and the octopus and the nautilus are cephalopods
Explanation:
cephalopods have 4 groups which are the 8 armed octopus and ten armed squid and cuttlefishes and the shelled chambered nautilues
bivalves have laterally compressed bodies enclosed by a shell and gastropods are commonly known as snails and slugs from saltwater and freshwater and from the land
which statements best compare a function of proteins and lipids in a human cell? a. proteins provide energy for cellular processes. lipids catalyze chemical reactions inside the cell. b. proteins catalyze chemical reactions inside the cell. lipids allow for the transport of certain molecules into and out of the cell. c. proteins allow for the transport of certain molecules into and out of the cell. lipids store genetic information for cells. d. proteins store genetic information for cells. lipids provide energy for cellular processes.
The statement that best compare a function of proteins and lipids in a human cell is that the proteins store genetic information for cells and lipids provide energy for cellular processes.
What are proteins and what are lipids and what are their roles and functions inside the cell?Proteins are the polymers formed by the combination of monomers and are the basic and main component of living body.As we can predict proteins are taken in our diet, all the proteins are the polymers of alpha amino acids.Here the question is asked of the most precise statement which represents the function of protein and lipids inside the cell.Here the fourth option that is the proteins store genetic information for cells and lipids provide energy for cellular processes is correct.Proteins help in making molecules according to the genetic code coded in DNA that is deoxyribonucleic acid.Lipids are the basic bilayers of the cell membrane of the cell and is considered to be a significant part of the cell membrane.Lipids have a function , like it act as fat molecules which insulate the cell body and provide energy for cellular processes.To know more about cell visit:
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Answer:b
Explanation:
If the water potential of a dialysis bag is -4.0 and the pressure potential was -2.0 and the
solute is sucrose, what was the concentration of the sucrose solution? The temperature
of the room is 37 C. Round to the thousands place (3 decimal places) and don't put the
unit.
The concentration of the sucrose solution is 0.077 moles/L
What is concentration?The amount of a substance, like a salt, that is in a particular amount of tissue or liquid, such as blood. A substance gets more concentrated when less water is present. For example, the salt in urine may become higher in concentration when a person doesn`t drink enough water.
The formula for water potential is Ψ = ΨS + ΨP. The osmotic potential is directly proportional to the solute concentration. As the concentration of a solute in a solution increases, the osmotic potential of water in that solution decreases.
Ψ = ΨS + ΨP
ΨS = Ψ - ΨP
Where, ΨS = Solute potential
ΨP = Pressure potential (-2.0)
Ψ = Water potential (-4.0)
Now, substitute the values:
ΨS = -4.0 - (-2.0)
ΨS = -4.0 + 2.0
ΨS = -2.0
For, solute concentration:
ΨS = -iCRT
ΨS = Solute potential (-2.0)
i = 1
C = Concentration of the sucrose
R = 8.314 × 10⁻² bar L/mol k
T = 37°C or 310.15 K
Now, substitute the values:
-2.0 = 1 × C × 8.314 × 10⁻² × 310.15
C = 0.077 moles/L
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An introduced insect is devastating several related plant species within a diverse natural area. An environmental manager is tasked with developing and preserving the area. He decides to use a biological control method, a parasitic fly that feeds on the pest insect's larvae. Would this be considered a density-dependent or a density-independent approach to population control? A. Density-independent, because it is not likely to completely control the pest's density B. Density-independent, because both pest and biological control agent are introduced C. Density-independent, because the parasite could become a pest, causing a natural disaster D. Density-dependent, because it reduces the population density of the pest E. Density-dependent, because both pest and biological control agent are introduced
because it lowers the pest's population density, it depends on density.
The reason why predation depends on densityAnother element that depends on density is predation. When the population of a species of prey increases, predators will benefit from the more plentiful food source and will typically eat more of that prey as the population increases.
What indicators exist that a population is density-dependent?In the process of estimating and assessing population increase, both density dependence and density independence may coexist. The relationship between a population's growth rate and density can be examined to see if there is any density dependence.
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features of gills of fish
Answer:
Gills usually consist of thin filaments of tissue, branches, or slender tufted processes that have a highly folded surface to increase surface area. The high surface area is crucial to the gas exchange of aquatic organisms as water contains only a small fraction of the dissolved oxygen that air does.
Explanation:
.
what is the name of the fruit that is banned in the us because of its blood sugar lowering properties
Answer:
Blighia Sapida (aka Ackee)
Explanation:
A parent cell divides according to the image shown below. What differences in structure and behavior would you expect from Cell A and Cell B?
The daughter cells have a different number of chromosomes what is an indication of failure in the motitic division, thats because during division the parent cell have to duplicate the genetic material to pass for the next generation in equal number, since this is important to maintain the cellular integrity, as weel as the characteristics of the cellular species. The Cell A is an identical copy of the parent cell (somatic cell), having the same traits and functions, as well as a normal cellular activity, while Cell B have only half of the genetic information of the mother cell, this cell more close to an sex cell than a somatic cell, numerically speaking, since the fact of it having 1/2 of the information makes it more difficult to perform its cellular functions as a somatic cell.
[3
A form of bulk transport in which materials are transported from the inside to the
outside of the cell in membrane-bound
vesicles that fuse with the plasma
membrane.
The bulk transport of materials from inside of cell to outside of the cell is exocytosis.
Exocytosis:Cells must release certain molecules into the environment, such as waste products and signaling proteins, just as they must take in certain molecules, such as nutrition. Exocytosis is a type of bulk transport in which materials are transported from the inside to the outside of the cell in membrane-bound vesicles that fuse with the plasma membrane.
Steps of exocytosis:A vesicle typically arises in the endoplasmic reticulum, the Golgi apparatus, or early endosomes. The vesicle moves toward the cell membrane. As the vesicle attaches to the plasma membrane, the two bilayers come together. The vesicle's contents are released into the extracellular environment.
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Toucan
Monstera Plant
The Toucan has a long, narrow beak that allows it to reach fruit that is hard to reach for other birds.
Plants, like the Monstera Plant, in the rainforest have long, grooved leaves to drop water to the forest
floor. The excessive water that falls in the rainforest could lead to mold, so the leaves adapted to
have "drip tips" that allow the water to run off of the leaves.
What type of adaptations are these? Compare and contrast the adaptations of the Toucan and
Monstera Plants of the rainforest. Your answer should be 3-4 sentences long.
structural
This is because the toucan has now evolved over time. this is to reach narrow fruits with its beak. the plant has also evolved over time. this is to make sure that the plant doesnt rot.
in mussels the allele for brown coloring is dominant and the allele for blue coloring is recessive. for which parental genotype are 100% of the offspring expected to be blue
In mussels the allele for brown coloring is dominant and the allele for blue coloring is recessive. bb x bb parental genotype is 100% of the offspring expected to be blue.
The type of variation present at a certain locus (i.e., region) in the genome is scored by what is known as a genotype. Symbols can be used to symbolize it. For instance, BB, Bb, and bb might be used to denote a certain gene variation. The actual DNA sequence, such as CC, CT, or TT, can also serve as a representation of a genotype. In a single experiment, the genotypes at millions of sites in a genome may be determined using DNA sequencing and other techniques. Some genetics influence an individual's phenotype, or observable qualities.
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What is the mollusk's mantle?a. The tentaclesb. A thin layer of skin covering the bodyc. The foot that lets it moved. A small, muscular hood
The mollusk's mantle is responsible for secreting calcium carbonate that will be used to form the shell. Therefore, it is spread throughout the body, wrapping it upp. So the correct answer is b. A thin layer of skin covering the body.
dna ploymerase checks for muations during
Answer: During DNA Replication
Explanation:
DNA Polymerase is the enzyme that uses a single stranded DNA template strand to produce a piece of dsDNA. This is used to replicate the DNA according to the semi-conservative model of replication.
During replication DNA polymerase makes approximately one mistake per 10^5 nucleotides. Thankfully the DNA polymerase has proof reading capabilities and has the ability to excise the mistake using it's 3' - 5' exonuclease domain.
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Exit Ticket: Explain how the structure of a cell
(2 layers) matches its function.
membrane
Answer:The cell membrane functions as a barrier that makes it possible for the cytoplasm to maintain a different composition from the material surrounding the cell. The unit membrane is freely permeable to water molecules but very impermeable to ions and charged molecules. It is permeable to small molecules in inverse proportion to their size but in direct proportion to their lipid solubility.
Explanation:
What are the three main weapons of predators?
Answer:
sharp teeth, claws and jaws.
Explanation:
Please answer the question in the picture
a. Interpret the pattern of bacteria (white dots) in the different color regions
shown above. 1 mark
b. State a hypothesis that might have been proposed for the experiment with
the algae. Explain how the results obtained supported or refuted this
hypothesis. 2 mark
a) Pattern of bacteria in the different color regions: The highest concentration of bacteria is observed in colors violet-blue and yellow-orange. A low concentration of bacteria is observed in green color. No bacteria is observed in orange-red color.
b) Hypothesis: Algae exposed to wavelengths between 500 and 600 nm will express the greatest photosynthetic rate.
What is a hypothesis?When following the scientific methodology, researchers must formulate a hypothesis.
A hypothesis is a scientific conjecture, not verified, that requires corroboration. It is a possibility, not a fact. It is a claim of how it works a relationship between two or more variables.
The researcher hypothesizes to predict what is going on or what is expected to occur.
A hypothesis
must be clear and comprehensive.must express the direct relationship between the involved variables.must be objective.must be tested and falsifiable
In the exposed example, the involved variables might be, for instance, wavelength and photosynthetic rate.
Wavelength is the independent variable and varies between 300 and 700 nm approximately. Wavelength is represented by lights of different colors.
Photosynthetic rate is the dependent variable. It responds to changes in the independent variable, meaning the photosynthetic rate will vary according to the wavelength to which the algae is exposed.
Hypothesis
Algae exposed to wavelengths between 500 and 600 nm will express the greatest photosynthetic rate.
We know that during photosynthesis, oxygen is released. The more oxygen is released into the environment, the greater the photosynthetic rate is.
So, a simple way to measure oxygen concentration (and hence, the photosynthetic rate) is to observe the pattern distribution of oxygen-seeking bacteria when exposed to algae under different light conditions.
These bacteria will be more concentrated in areas where there is more available oxygen. So bacteria concentration will be an indicator of oxygen release. And the amount of oxygen is an indicator of the photosynthetic rate.
In the diagram, we can see that,
the greatest concentration of bacteria occurs in wavelengths around 400 nm and 675 nm, approximately. These are blue-violet colors, and yellow-orange colors, respectively.
a low concentration of bacteria occurs in wavelengths between 500 and 600 nm. This is green in color.
no bacteria are present in wavelengths greater than 700 nm. This is red in color.
This pattern of bacteria in the different color regions suggests that
the algae photosynthetic rate is greater when exposed to wavelengths around 400 nm and 675 nm.
Under these light conditions, the algae photosynthesize more, and more oxygen is released, so more bacteria are attracted.
the algae photosynthetic rate is lower when exposed to wavelengths 500 and 600 nm.
Under these light conditions, the algae photosynthesize less and less oxygen is released, so fewer bacteria are attracted.
the algae photosynthetic rate is null when exposed to wavelengths over 700 nm.
Under these light conditions, the algae do not photosynthesize, no oxygen is released, and no bacteria are attracted.
Note: Please notice that other variables might be considered when analyzing this example.
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What is the primary function of the pigment molecules in a light-harvesting complex?.
Light-harvesting complex pigments absorb light and transfer energy to a special pair of chlorophyll a molecules in the reaction centre.
Where are the pigment molecules ?A pigment is a broad term for any molecule that absorbs light and has a distinct colour. Plants contain a variety of pigments, which give rise to the various colours we see. Flowers and fruits are obviously rich in organic molecules that absorb light. Pigments can also be found in the leaves, stems, and roots.
Pigment molecules are frequently organic molecules with "highly conjugated rings" that allow electrons to "bounce" around when "excited." Many other pigments contain transition metals, which transfer electrons between molecules.
Anthocyanins, flavanoids, flavines, quinones, and cytochromes are examples of pigment molecules. None of these, however, should be considered photosynthetic pigments. Photosynthetic pigments are the only pigments that can absorb sunlight energy and transfer it to the photosynthetic apparatus.
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