Cytotoxic T cells protect the body by _____________.

A. secreting toxic substances that destroy pathogens

B. phagocytizing invaders

C. activating the complement system

D. making antibodies that float free in the body fluids

Answers

Answer 1
C.) Hope it helps :)

Related Questions

A.GL, Gl, gL, gl
B.GG, Gg. LL, Ll
C.GL, Gl
D.GG, Ll

Answers

Answer:

GL Gl gL gl

Explanation:

What helps keep moisture in soil and holds roots in place in very windy areas like the Great Plains?

Answers

Sod
The thick mass of tough roots at the surface of the soil. Helps keep the soil in place and keeps in moisture.

:) have a good day

Pleas e Brainlyiest if you answer

Answers

Answer:

B

Explanation:

Answer:

The second option (i think)

Explanation:

Chromosomes are the things that make organisms what they are. They carry all of the information used to help a cell grow, thrive, and reproduce. Chromosomes are made up of DNA. Segments of DNA in specific patterns are called genes.

If a population is evolving, the allele frequency ________

Answers

If a population is evolving, the allele frequency will change.
Answer: Change

Analyze the effects of DNA mutations
on the
of an organism.

Answers

Answer:

DNA mutations or Chromosomal mutations are also called chromosomal aberrations, chromosomal abnormality, or chromosomal disorders, all indicating a possible alteration in the morphology and structure of the chromosome.

DNA mutations lead to abnormalities in the function of the cell and organism, as chromosomal or DNA mutations can result in abnormal gene numbers or positions.

These are known to cause different genetic diseases that can be hereditary and are transferred from one generation to another.

These mutations, however, do not always affect the functioning of the cell as some mutations might affect regions of chromosomes that do not make up the genetic makeup of the organism.

Even though gene mutations are usually more severe than chromosomal mutations, some chromosomal mutations might result in gene mutations.

tRNA uses (anticodons/codons) to match to the mRNA.

Answers

Answer:

anticodons

Explanation:

codons are for mRNA

tRNA uses anticodons to match to the mRNA.

Which one does tRNA uses?

tRNA (transfer RNA) molecules are responsible for carrying specific amino acids to the ribosomes during protein synthesis.

They have an anticodon region that consists of three nucleotides that are complementary to the codons on the mRNA (messenger RNA). The codons on the mRNA determine the sequence of amino acids in the growing polypeptide chain.

The anticodon on the tRNA base pairs with the complementary codon on the mRNA, ensuring that the correct amino acid is incorporated into the growing protein chain. The matching between the anticodon and codon is essential for the accurate translation of genetic information into protein synthesis.

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Which waves can make dramatic ground movements

Answers

earthquakes? .........

Answer:

surface waves

Explanation:

surface waves

In the mouse model of malaria, the researchers injected Plasmodium-infected human red blood cells into the mice because the Plasmodium species had surface ligand proteins that bound only to cell membrane proteins of human red blood cells. Assume that the researchers noticed that some of the parasites no longer infected human red blood cells but instead infected mouse red blood cells. Predict the most likely cause of this change in the host specificity of the parasites. Plasmodium reproduces both sexually in the host vertebrate and asexually in mosquitoes. The researchers claim that the Plasmodium organisms that infect the two different types of red blood cells are likely to evolve into two separate species of Plasmodium. Based on the biological species concept, provide reasoning that would support the researchers’ claim.

Answers

There is a mutation in the în the genes coding the ligand. They will evolv3 separately in two host species proving the researchers right.

Which of the following represents the correct order of the phases of the
Moon?

A. new moon, full moon, last quarter, first quarter, and then new moon again

B. full moon, new moon, last quarter, first quarter, and then full moon again

C. full moon, last quarter, new moon, first quarter, and then full moon again

D. last quarter, full moon, new moon, first quarter, and then last quarter again

Answers

Answer:

c

Explanation:

full and new moons aren't back to baxk

Lysogenic viruses do not

Answers

Answer:

Unlike a lytic virus, a lysogenic virus does not cause the host cell to lyse away. A lysogenic virus can remain inactive for a period of time. In lysogenic infection, viral DNA gets integrated with the host cell's DNA, where it is copied along with the host cell's DNA when the host cell replicates.

Explanation:

Which statement best describes the movement of ocean waves? Water moves across the ocean's surface water remains in the same place as wave (energy) travels through it water moves because there is a difference in density of the water creating a wave none of these

Answers

Answer:

water remains in the same place as wave (energy) travels through it

Explanation:

Winds influence the ocean and its movements. Air current running on the ocean surface transfers energy to water. A wave is nothing else than energy. When the winds provide energy to the water surface and produce waves, it occurs a particular water molecules´ motion. They move in circles from up to down, up to a certain depth, and go back to the surface. And they do so while energy from the wave is passing through. Waves are the ones that move through the ocean until they reach the shore, where the energy is transferred to land. Water molecules remain in the same general area, while energy travels from molecule to molecule as a wave.

Why do you think they split the reptiles into four different groups?

Answers

Large morphological differences as well as a long history of divergence throughout evolutionary history

help.................

Answers

Answer:

I would say B.

de-forestation is definitely not the answer. and introducing non native species is usually a big no no for the ecosystem.

Answer:

b

Explanation:

if there is nothing to kill bees with then they wont die.

Which is a primary way that enzymes affect these reactions? *

Answers

Answer: chemical reactions

Explanation: The function of an enzyme is to speed up chemical reactions. They do this by lowering the activation energy, which is the minimum energy that must be available for a chemical reaction to occur. If the energy required is lowered, the reaction can go faster.

When a person loses consciousness due to a head injury from a car crash, the ______ keeps the body functioning by regulating the flow of information between the brain and the rest of the body

Answers

Answer:

Brain stem

Explanation:

I hope this helps

give an example of something that might stop a cell from checking things during the cell cycle

Answers

Answer:

The death of nearby cells and the presence or absence of certain hormones can impact the cell cycle

4 In your own words, describe the relationship between
the processes and forces that create the different types of rocks

Answers

Answer:The three main rock types are igneous, metamorphic and sedimentary. The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation.

What is the main difference between active transport and passive transport?

(A) During active transport the water inside the cell is used to transport substances throughout the cell. Passive transport uses the cell's cytoplasm to move substances around the cell.

(B) Passive transport moves substances throughout the cell without using the cell's energy and active transport moves substances using the cell's energy.

(C) Active transport moves substances from higher concentrations to lower concentrations and passive transport moves substances from lower concentrations to higher concentrations.

(D) Passive transport moves substances that are too large to get through the cell membrane by forming a vesicle inside the cell and active transport forms the vesicle on the outside of the cell.​

Answers

Answer:

B

Explanation:

passive transport uses diffusion to transport while active transport uses some energy most commonly atp

A segment of DNA strand is shown.
3’ ATCGATCCA 5”
Which of these is the correct complementary DNA strand for the segment shown?
A. TACCTAGGA
B. TAGCTAGGT
C. ATCGATCCA
D. ACCTAGCTA

Answers

B. TAGCTAGGT
Remember whenever you doing complementary DNA strand Adenine (A) ⟷ Thymine (T) & Cytosine (C) ⟷ Guanine (G)

If your temporal lobe was damaged, what might happen to you?
A You'd have trouble breathing
B You'd have trouble processing speech С You'd have trouble remembering things D You'd have trouble controlling your body temperature​

Answers

Answer:

c you would have trouble remembering things.

Explanation:

Difficulty learning and retaining new information. Impaired factual and long-term memory, Persistent talking, Difficulty in recognizing faces.

Write a 200-word report on your research, using proper grammar, correct spelling, and appropriate punctuation. Make sure you include:

A definition of overgrazing
A discussion on the damage overgrazing can cause
The advantages and disadvantages of each type of grazing
A discussion on the type of grazing you select to use, which includes your justification of why you selected the grazing strategy

Answers

Answer:

answer is in explanation before

Explanation:

Overgrazing occurs when plants are exposed to intensive grazing for extended periods of time, or without sufficient recovery periods. It can be caused by either livestock in poorly managed agricultural applications, game reserves, or nature reserves. Overgrazing combined with overstocking has the most damaging outcomes to the world’s natural environment. The scarcity of water resources, water pollution, degeneration of coral reefs, and eutrophication are all connected to overgrazing. The chief polluting elements include farm chemicals and animal wastes.

Types of grazing systems 1. Types of grazing systems Grazing animals (such as cattle, sheep and goats) feed on the leaves and shoots of grass... 2. Zerograzing In this type of grazing system, the animals are not allowed to go out into the pastureto graze.

Overgrazing is defined as the practice of allowing too many livestock to graze on a particular area of land for an extended period. This leads to a decrease in the vegetation cover and the soil's capacity to hold moisture, which results in soil erosion and desertification.

What is overgrazing?

There are three types of grazing systems: continuous grazing, rotational grazing, and intensive grazing. Continuous grazing involves leaving livestock on a particular area of land throughout the year. Rotational grazing involves rotating livestock to different areas of land to prevent overgrazing. Intensive grazing involves keeping livestock in smaller paddocks and rotating them frequently.

Hence, overgrazing is defined as the practice of allowing too many livestock to graze on a particular area of land for an extended period. This leads to a decrease in the vegetation cover and the soil's capacity to hold moisture, which results in soil erosion and desertification.

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Which type of muscle is long and striated and contains multiple nuclei?
Smooth Muscle
Cardiac Muscle
Muscle of the Digestive System
Skeletal Muscle

Answers

Answer:

Skeletal Muscle

Explanation:

Answer:

Skeletal Muscle

Explanation:

¿Con que otro nombre se le conoce a las placas de espuma de poliuretano altamente contaminante?

Answers

Answer:

La espluma de poliuretano (espluma PU) ye un material plásticu porosu formáu por un agregamientu de burbuyes, conocíu tamién polos nomes coloquiales de gomaespuma n'España o gomapluma en dellos países suramericanos. Contienen sustances d'escasu poder canceríxenu que si representen dalgún peligru, namái sería tres esposiciones intenses y teniendo contautu direutu.Tamién ye denomináu Poliuretano proxectáu, por cuenta de la forma na que se suel aplicar sobre superficies. Explanation:

Carbon dioxide enters a plant through pores (openings) called the
A. stomata.

B. cuticle.

C. veins.

Answers

A. stomata

I hope this helps good luck!! :)

This moray eel has a small fish cleaning between its teeth. The eel gets a
clean mouth while the cleaner fish gets a nice meal.
A.Mutualism
B.Commensalism
C.Parasitism

Answers

Answer:

A. Mutualism

Explanation:

The moray eel and the small fish are both getting something out of it. Meaning they both benefit from each other.

A.Mutualism. hshshshshs

Please help!!

Explain why it would be financially beneficial for a farmer to treat a fruit crop with gibberellins.

Answers

Answer:

Gibberellins can promote flowering, which can result in more financially profitable flowers to sell due to the increased speed of flower growth. More attractive flowers and larger specimens are also produced. Flowering also has an impact on the rate of fruit growth.

Explanation:

Examine the image that shows the folds in the lining of the small intestine.
Which of the statements best describes the interaction between the small intestine and another organ based on the model shown
here?
A)
The large number of extensions allows the small intestine to filter wastes
before they are absorbed by the kidneys and liver.
B)
The large indentation in the small intestine lining allows for the storage of
food molecules before they are processed by the liver.
The increased surface area to volume ratio of the small intestine allows for
the absorption of materials into the bloodstream more efficiently.
The increased number of cells in the lining of the small intestine allows
the absorption of materials into the large interesting more efficiently.
D)

Answers

Answer:

D?

Explanation:

I took this test on Testprep but I am not sure that is the answer but I wish good luck to you

Answer: It is C.) The increased surface area to volume ratio of the small intestine allows for

the absorption of materials into the bloodstream more efficiently.

Explanation: Microvilli increases surface area of the cells

What phylum does green algae belong in

Answers

Answer:

Phylum Chlorophyta

Explanation:

hope this helps :)

As a result of the experiment scientists did with Mexican tetras, it seems likely that their first hypothesis about blindness in the tetras is right. Explain how the result of the experiment supports their first hypothesis.

The scientists' first hypothesis is that blindness gives the fish some sort of evolutionary advantage, but not directly.

The experiment was: The scientists transplanted a lens from the eye of a surface tetra embryo into the eye of a cave tetra embryo. The result was striking—the surface tetra lens into the cave tetra caused all of the surrounding tissues to develop into a healthy eye.

Answers

A result that supports the hypothesis 'blindness gives the fish some evolutionary advantage, but not directly' may be a higher fitness in close relatives of fish.

What is a hypothesis?

An scientific hypothesis is a given explanation to a scientific observation from the real world.

A hypothesis must be verifiable, which means that it can be confirmed or rejected by using the scientific method.

In conclusion, a result that supports the hypothesis 'blindness gives the fish some evolutionary advantage, but not directly' may be a higher fitness in close relatives of fish.

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ASAP!!
Write any 3 ways to protect the crop from disease and insects​!!
No links!!!
No spams!!

Answers

Pull weeds around your plants as well. Insects such as aphids and
stinkbugs feed on weeds; if they surround your plants, they're likely to attack them as well.

Biological pest control approaches such as cover crops, trap crops and beetle banks.

Fertilize and water your plants regularly. Insects are less likely to infest healthy and well-nourished plants.
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Suppose a proton ( = 1. 6710^27 kg) is confined to a box of width = 1. 0010^14 m (a typical nuclear radius). 1. What are the energies of the ground and the first excited states? 2. If the proton makes a transition from the first excited state to the ground state, what are the energy and the frequency of the emitted photon? pls help due in 10 mins Can someone please help me Identify six specific skills that a computer software engineer is expected to demonstrate. 8. The density of a gas at 350 C is 0,087 g/L. Compute the density at STP. What movie is considered to be a "serious art" Why does the author include the following sentence in the passage?A birds wing is a wonderful flying-machine, which men have been trying toimitate these many years. (paragraph 2)A to describe how birds are different from humansB to explain how strong birds wing feathers can beC to introduce how different birds fly in different waysD to illustrate how exciting the study of birds wings can be Is this correct?? Please dont mine the little notes I took when solving it..A= 12, base= 16 Area= (1/2)(12)(16) = 96 384+96 =480 Semi Circle should be something like =(1/2) pir^2 diameter= hypotenuse= sqrt(12^2 +16^2) = 20 radius= r= d/2= 20/2 Semi Circle= (1/2) pi 10^2= 50pi= 157.0796327Total = 480+157.0796327=637.0796327. Rounding to the nearest hundred would give me 637.08?? Deoxyribose (sugar). Total number in image? The graph shows the number of words in Taylors essay and the number of minutes she spent writing the essay. What is the rate of change in words per minute? Which answer is correct?? A 6 inch personal pizza has 620 calories, with 240 of those from fat. A 12 inch pizza is cut into 8 slices. Estimate the number of calories in one slice of a 12 inch pizza. Please write a sentence with at least 15 homophones please. Thank you. Appropriate. please HELPPP i need this done ASAP Help if you can - 8 commercials in 15 minutesFind Unit RatePlzz show work!Also, dont add any type of linksThanks!! :D Which is the best way to revise the underlined partof sentence 19?(19) The video I had was not a good choice it did not havea variety of exercises.A. was not a good choice, and it did not haveB. was not a good choice, it did not haveC. was not a good choice; it did not haveD. was not a good choice; because it did nothave I will mark Brainliest for frist answer How to write a long letter to your father asking him to get you a new mobile phone 5.3. The Manhattan Island Cruise Company sold 57tickets for its Circle-the-Island Cruise. Each adult hadto pay $22 for the cruise and each child had to pay$10. The company's total receipts were $774. Howmany children went on the cruise? How are primary and secondary ecological succession similar? 1 Both types of succession require the same amount of time to occur. 2 Both types of succession result in greater biodiversity over time. 3 Both types of succession decrease the stability of an ecosystem. 4 Both types of succession have the same starting conditions. 5 Both types of succession eventually lead to a community closer to equilibrium.