From all the options given, the one that has the greatest resistance are endospores. Endospores have several outer coats that protect them from dessication, temperature changes, and even from UV radiation. Endospores are the response to environmental hostility, therefore when a bacteria senses abiotic adversity it starts to deploy the mechanisms to create an endospore, which is the resistant form of the microbe. Fungi, and the other bacterias mentioned are capable of developing spores, but these organisms themselves are more vulnerable than a endospore.
A cell needs to take up K+ ions, the concentration of Nat outside the cell is 100 ppm, and inside the cell it is 75 ppm. Which type of transport will it use?
The cell will use what is known as Active Transport
Active transport is used when a cell is moving against it's concentration gradient. That means it's going from less energy inside to more energy on the outside.
Resources used by the grasshopper would increase as the population___.a. remains steady c. decrease in size b. increase exponentially d.migrate
The population of grasshoppers can build and explode with exponentially growth under the good climatic factors.
Therefore option b is correct.
When cells are damaged, they release proteins called_____, which causes the area to become flooded with fluid and clotting elements.A. HistamineB. PathogensC. NeutrophilsD. Lysozyme
Answer:
Histamine ✨
Explanation:
Histamine is a compound released from cells. This histamine release is usually in response allergic and inflammatory reactions and injuries.
Histamine causes the contraction of smooth muscle and dilation of capillaries when released.
Select 3 that apply.The three types of segmented worms are _________, __________, and _________.leechesscallopspolychaetaoystersearthworms
The correct answer are leeches, polychaeta and earthworms. All of these are segmented worms.
Which of the following choices is an example of a non-specific barrier?skinwhite blood cellslymphatic systemthe immune system
The defense system of the body
The skin is a non-specific barrier because it protects the body from non-especific pathogen agents, covering a major diversity of possible disease carriers.
Identify your organism as a prokaryote or a eukaryote and give three reason why Organism : great white shark
Great white sharks are considered as the largest predatory fish. It is a eukaryote. It possess a true nucleus and the other membrane-bound organelles are present. It is composed of many cells with a nucleus and organells which is a characteristic of a eukaryotic organisms. Its nucleus stores the genetic information. Organisms with complex structures such as a great white shark is a eukaryote.
A prokaryotes lacks a nucleus and other organelles and divided into bacteria and archaea.
What is a law?
A. A well-tested explanation as to why something occurs that is generally accepted
B. An assumption made about an experience
C. A scientific explanation for a set of observations that can be tested
D. A proven, universal truth that states what happens
Answer:
I would say D
Explanation:
A law is saying WHAT is happening
A theory is saying WHY it is happening
Answer: D. A proven, universal truth that states what happens
Explanation:
In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. Laws have not had any contradicting observations.
Which disease or disorder is a form of dementia that is chronic and progressive?
O epilepsy
O cerebral aneurysm
O cerebral palsy
O Alzheimer's disease
A person's blood pressure falls. Which of the following would you expect to occur? (Select all that apply.)
A. circulating concentrations of renin will increase
B. circulating concentrations of angiotensin II will decrease
C. circulating concentrations of aldosterone will decrease
D. water uptake by the distal convoluted tubule will increase
Answer:
A. circulating concentrations of renin will increase
D. water uptake by the distal convoluted tubule will increase
Hope this helps! :)
When circulating levels of renin increase, a person's blood pressure decreases, hence option A is correct.
What is blood pressure?Angiotensin is generated more often when renin, which is mostly produced by the kidneys, is increased. Angiotensin then triggers the release of aldosterone from the adrenal cortex.
Blood and tissues both create angiotensin, and the kidneys produce renin, a proteolytic enzyme, into circulation.
When the kidneys receive low blood flow, they behave as if the decreased flow is related to dehydration. Blood pressure rises as a result of the increased fluid filling the blood vessels.
Therefore, when your blood pressure falls too low or when your body doesn't have enough salt, renin is released into your circulation, hence option A is correct.
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What is the bottleneck effect?A. a change in allele frequency due to a dramaticloss of populationB. the movement of a few individuals to a newlocation to start a new populationC. the low fitness of a select group of individuals
The correct answer is option A. a change in allele frequency due to a dramatic loss of population. This usually occurs when something cause mass
over the course of 45 years the moth population would change by ?
Over the course of 45 years the moth population would change by colour because of the effects of Industrial Revolution. This is due to the effects of air pollution reffered to as industrial melanism. During this period, there was an increased in the population of dark-coloured moths. As an effect, the pale-colored moths were extra detectable to predators.
Which of the following choices is NOT part of the chloroplast?ооооcristaestromathylakoidschlorophyll
The parts of a chloroplast are the inner membrane, outer membrane, intermembrane space, thylakoid membrane, stroma and lamella.
Chlorophyll is the green pigment found within the thylakoid membrane.
Cristae are found on the inner membraine of mitochondria in the cell cytoplasm.
Answer - Option 1 - cristae
"Dinosaurs first appeared and became the dominant terrestrial vertebrates. Birds first appeared, evolved from a branch of theropod dinosaurs. The first mammals also appeared but would remain small. Flowering plants appeared and would rapidly diversify throughout the period. "These are characteristics of which era?CenozoicPrecambrianMesozoicPaleozoic
The correct answer is MESOZOIC ERA
The Mesozoic era (middle life) is known as the age of dinosaurs in whcih they evolved from earlier reptiles in order to fill the niches on land, water, and in the air. This era was also where the mammals evolved but were in small size. Flowering plants also start to appear.
Why are we not likely to have another "Cambrian Explosion"?
The Cambrian explosion took place over 500 million years ago. It happened when prime animal groups started to be found in fossil record, an era of rapid expansion that include different form of life on earth . Human race has already evolved so no Cambrian Explosion is possible .
Cambrian explosion, the development of organisms between 541 million to 530 million years ago at the onset of the Cambrian Period.
The Cambrian Period is considered as one of the major milestone in the history of life on Earth it was era of evolution were major groups of animal primitive appeared. This event is referred as the "Cambrian Explosion," because of the relatively short time over which this diversity of forms appears.
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When an ice cube is heated to 0 degrees Celsius, it turns to water. What is this called
Answer:
i think its melting
Explanation:
i am not for sure let me know in comments if it is incorrect
Answer:
melting/defreezing
Explanation:
is this the answer you're looking for?
Sort the following in the correct sequence for the flow of energy in a food chain. Start with the first organism on bottom.CarnivoreProducerDecomposerHerbivore
In a food chain, we have a linear series of links that start from producer organisms and end at an apex predator species or decomposer and detritivores.
In this case, the order would be as follows, with the first organism on the bottom:
Decomposer
Carnivore
Herbivore
Producer
Why are we not likely to have another "Cambrian Explosion"?
The Cambrian explosion took place over 500 million years ago. It happened when prime animal groups started to be found in fossil record, an era of rapid expansion that include different form of life on earth . Human race has already evolved so no Cambrian Explosion is possible .
Cambrian explosion, the development of organisms between 541 million to 530 million years ago at the onset of the Cambrian Period.
The Cambrian Period is considered as one of the major milestone in the history of life on Earth it was era of evolution were major groups of animal primitive appeared. This event is referred as the "Cambrian Explosion," because of the relatively short time over which this diversity of forms appears.
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6. The typical human body cell contains 46 chromosomes. How manychromosomes are found in a typical human gamete?A. 23B. 45C. 46
We have to consider that almost all the human body cells contain 46 chromosomes, or 23 pairs of them because they are diploid cells, in other words, they contain 2 loads of chromosomes (2n), each from each parent. Whilst, we know that gamete cells, such as sperm and ovules have a only load of these chromosomes (n), in humans each gamete has 23 pairs of chromosomes, as we can see in the first answer option. This leads that, after fertilization, the process of
Which of the following is a way of storing carbon in organic material?A. ConsumptionB. RespirationC. All of theseD. Burning fossil fuels
To answer this question we need to analyze each available option.
A. Consumption: Through the consumption of organic compounds, biomass is created, so a part of the carbon is stored in this way, therefore we can say that this is the correct answer.
B. Respiration: Through this process, a glucose molecule of 6 carbons is processed, and as a consequence carbon dioxide is released as a subproduct.
C. All of these: This is incorrect as two statements imply carbon release into the environment.
D. Burning fossil fuels: Fossil fuels, are a rich source of carbon, that is why when are burned massive quantities of carbon dioxide are released, therefore this is incorrect.
Tissues in the human body refers to…Select one:a.a group of different cells working together to perform a common functionb.a group a different cells working together to perform different functionsc.a group a similar cells working together to perform a common functiond.a group a similar cells working together to perform different functions
Tissues in the human body refers to a group a similar cells working together to perform a common function. They have similar structures and work as a unit. It is made up of specialized cells grouped together depending on its structures and functions. It is the one that makes up the organs and the other parts of the body.
Answer - c. a group a similar cells working together to perform a common function
Tissues are known to be a group or number of cells functioning together to perform an activity. Therefore, according to the question, tissue is a group of similar cells working together to perform a common function.
A cell is the structural and functional unit of life. A number of similar cells give rise to tissue. In human body, there are various organs that are made up of a number of tissues.
Tissues in human body are made to perform various function such as - any kind of movement. Humans being multicellular, has different kinds of tissues.
A number of tissues makes up an organ that is specified in performing one activity.
A number of organs make up an organ system and then group of organ system forms an organism. A tissue is responsible for the specific function of an organ.
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They are used to release energy in cellular respiration and play an important role inhomeostasisa) Lipidsb) Proteinsc) Carbohydratesd) Nucleic Acids
Carbohydrates are broken down during cellular respiration and also release energy.
30) In a dideoxy chain-termination method, you added dideoxy cytosine only instead of dNTPs. What would be the outcome of your sequencing reaction? a) They will all be the same size and end in a G b) They will be of different sizes, all ending in a G c) No product will be formed d) They will be of different sizes, all ending in a C e) They will all be the same size and end in a C
If you add only cytosines instead of dNTPs, this means hat the sequencing would stop after tfilling all the terminal cytosines because it cannot add the other nucleotides needed, so you would end with fragments of different sizes, all of them ending in Cytosine (option d would be correct).
What is the overall goal of cellular respiration?
Cellular respiration is a way where the food that we consumed is being converted to energy out of sugar which is in the form of glucose. The organism is combining the oxygen with the food and diverting the energy and discarding carbon dioxide and water as its waste products. It occurs in the mitochondria of an animal or plant organisms. The overall goal of cellular respiration is to break down the sugar in the form of glucose with oxygen in order to release energy (ATP). ATP is the energy that the body can use for energy.
Hello I’m taking up my work, please correct me if I’m wrong,Thank you!
Both in the oral cavity and in the stomach there are enzymes that break down food into the fundamental units of macromolecules. This means that in both places there is chemical digestion. On the other hand, both in the oral cavity and in the stomach there is a mechanical apparatus that produces mechanical digestion.
We can conclude that the correct answer is:
Answer:In which case is the energy involved farthest from being kinetic energy?A.random molecular movement B.light C.heat D.the energy in chemical bonds E.sound
A random molecular movement generates kinetic energy. Light and sound are not necessarily neither kinetic energy nor potential energy. Both can become kinetic energy if the right medium is used. Heat is another term for thermal energy and it can also produce kinetic energy if the right medium is used. The energy in chemical bonds is potential energy. If the bonds are broken down, the energy released will become kinetic energy.
ANSWER: D. The energy in chemical bonds
Give kudzu classification and general description.
Kudzu is a leafy vine. Its scientific name is Pueraria montana. It was introduced in the U.S. from Japan and China in the decade of 1930 to prevent soil erosion. As it doesn't have predators, it grows and spreads easily in the country. It is woody and it has approximately 60 feet, growing in each season. Its leaves are large and has three broad leaflets, with hairy margins. The flowers are purple and the seed pots are flat and hairy. Kudzu has been studied to understand its many possible benefits to human health, as it is traditionaly used in its place of origin to treat menopausal symptoms, alcoholism, diabetes, fever, among other conditions. It became an invasive species due to the lack of predator, causing harm to many environments where it has spreaded.
Cells are made of organelles, specialized structures that each perform specific functions that help the cell maintain homeostasis. This is much like the body systems work together to help the body maintain homeostasis. Consider each of the organelles and body systems paired below. Which pairs perform similar functions? Select ALL four that apply.
Responses
A integumentary system: cell membraneintegumentary system: cell membrane
B circulatory system: ribosomecirculatory system: ribosome
C digestive system: lysosomedigestive system: lysosome
D nervous system: nucleusnervous system: nucleus
E respiratory system: mitochondria
The body systems that match with the correct organelle are: (A) integumentary system: cell membrane; (C) digestive system: lysosome; (D) nervous system: nucleus; and (E) respiratory system: mitochondria.
Lysosome is the single membrane cell organelle that acts as the digestive system of the cell. It does so because it not only helps in the digestion of food particles, but also digests the foreign invaders so that the cell can protected from any kind of infections.
Nucleus is a cluster of neurons in the nervous system. Neurons are the cells that are basic unit of nervous system. Each neuron structure consists of cell body, with dendrites emerging from it. A long axon extends which has axon terminal at the end.
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Which of the following is true regarding the cell theory? Choose all answers that apply: Choose all answers that apply: (Choice A) A Single cells are non-living. (Choice B, Checked) B All living things are made of many cells. (Choice C, Checked) C Cells can only be formed from other cells. (Choice D) D Cells make up atoms.
Answer:
B and C are the answers for this question
At the complete end of cellular respiration, how many molecules of ATP are produced?Question 20 options:A) 34B) 15C) 38D) 26
To answer this question we needd to remember how meny ATP, NAD and FAD are produced on each step of cellular respiration, so the account is a follows:
Glycolisis, 2ATP, 2NADH = 6ATP
Aerobic phase (krebs cycle, Acetil CoA), 4ATP, 2FADH, 8NADH= 32 ATP
Now we must remember that in glycolysis we spent 2ATP so the net production of the whole process is 38 ATP minus 2 ATP, which gives us 36ATP.
Therefore we can say that the correct answer is option C as 38 ATP are produced in total.
The enzyme catalase is an important chemical in the functioning of what?
The enzyme catalase is in charge of the decomposition of hydrogen peroxide, a molecule that is toxic for the cell. This enzyme transforms hydrogen peroxide (H2O2) into water (H2O) and oxygen (O2), two elements non-toxic and necessary for cells. It is found on the peroxisomes of all cells and it is very important mainly on blood cells.