A(n) is a protein and/or sugar molecule on the surface of a cell that allows the immune system to identify whether or not that cell poses a threat.

Answers

Answer 1

Answer:

Antigen

Explanation:


Related Questions

How does chemotherapy affect cells

Answers

Chemotherapy treatments can’t differentiate between cancer cells and healthy cells. That’s why chemotherapy harms or kills healthy cells, as well as cancer cells.

Explanation:

Many common side effects of chemotherapy are caused by the treatment’s impact on healthy cells. These side effects include anemia, a weakened immune system, hair loss, and nausea.

what is the name of the provisional head priestess of the asase shrine?

Answers

what is the name of the
provisional head priestess of
the asase shrine? Neko

(ii) Two grey mice, when mated, produced a total of 8 white, 9 black and 17 grey offspring. Student A suggested that grey coat colour was dominant in the mice. Student B strongly disagreed Which student is right? Explain your answer using appropriate symbols (4 marks)​

Answers

Answer: Grey color is the dominant color in this case because both parents are what color so they pass that on to the offspring and there where more grey offspring then any other

A major role of _________ receptors (part of the somatic nervous system) is to help us learn about the environment around us or about the state of our internal environment.

Answers

A major role of sensory receptors is to help us learn about the environment around us, or about the state of our internal environment. Different types of stimuli from varying sources are received and changed into the electrochemical signals of the nervous system. This process is called sensory transduction.

in translation, the dehydration synthesis reaction is catalyzed by which enzyme?

Answers

Answer:

hydrolysis

Explanation:

hydrolysis is the reverse of dehydration because it breaks a covenant bond by adding a water molecule

hope this was helpful ☆☆

In translation, the dehydration synthesis reaction is catalyzed by DNA polymerase enzyme. Therefore, the correct option is B.

What is DNA polymerase?

DNA polymerases are a group of enzymes that are responsible for catalyzing the synthesis of DNA. Their main function is to replicate the DNA. These enzymes work in pairs and a responsible for replicating two strands of DNA  in a tandem. DNA polymerases α and δ are primarily responsible for nuclear DNA replication. There are at least 15 DNA polymerases known to exist in humans.

Translation is the process by which the genetic code carried by mRNA is decoded to produce a specific sequence of amino acids that will form a protein. This process involves the ribosome, which is responsible for assembling the protein chain by joining amino acids in a specific order dictated by the mRNA sequence. Therefore, the correct option is B.

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The question is incomplete, but most probably the complete question is,

In translation, the dehydration synthesis reaction is catalyzed by which enzyme?

A. Ribosome

B. DNA polymerase

C. Peptide

D. RNA polymerase

E. Ligase

F. Topoisomerase

A key limitation of the coefficient of community is that it lacks the ability to:

Answers

Answer:

calculate the similarity between two communities.

Explanation:

the type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only.

Answers

Explanation:

A single parent reproduction is called Asexual reproduction

Asexual reproduction is a form of reproduction in which the number of chromosomes or the fusion of gametes is not altered.

What is asexual reproduction?

The whole gene pool of their single parent is inherited by the children that are produced by asexual reproduction from either unicellular or multicellular organisms.

With asexual reproduction, just one parent is necessary, two parents participate in sexual reproduction, which results in children with distinct genetic makeup.

A diploid zygote is created during sexual reproduction when two haploid gametes combine during fertilization, budding is an example of asexual reproduction.

Therefore, with asexual reproduction, just one parent is necessary.

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Based on the information in the food web, drag the organism label to the appropriate box to indicate your answer.

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I don’t see a picture. If you comment the picture to this comment I will answer it for you!If you are on computer right click on the image on your key board type Ctrl & C at the same time. Then come to the Brainly tab and in the comment hit Ctrl & P at the same time. If your on iPhone you can click the take a pic option and take a screen shot or pic of the picture

who is well known for his theory of evolution​

Answers

Answer:

Charles Darwin

The answer is Charles Darwin

How would you describe what happened to the matter (atoms, elements, molecules) during the cellular respiration? Explain your answer.
1. Matter was created
2. Matter was destroyed
3. Matter was rearranged
4. Matter went through no changes

Answers

3. Matter was rearranged

A site at the 5' end of a gene where RNA polymerase attaches to initiate transcription and control of gene expression occurs is called a/an

Answers

Answer:

A site at the 5′ end of a gene where RNA polymerase attaches to initiate transcription and control of gene expression occurs is called a/an

Explanation:

which pathways compose the autonomic nervous system

Answers

Answer:

sympathetic division and the parasympathetic division.

Explanation:

The two divisions of the autonomic nervous system are the sympathetic division and the parasympathetic division.

Design a solution to the Zebra Mussel invasion. What steps may be taken to reduce the negative impact of Zebra Mussels in the rivers and lakes in North America? Your response should include a logical way to reduce the number of Zebra Mussels. You should include 2-3 steps regarding how your method will work.

Answers

Answer: See explanation

Explanation: Zebra mussels are creatures that latch on to boats and inhabit areas that they are supposed to be in. To reduce the influx of Zebra mussels you can

1. Always check the bottom of your boat before coming back from a different area.

2. If you see zebra mussels you can use high pressure hot water to get them off.

3. Mark the area zebra mussels are located so you can warn others to look under their boats when they are coming back from that area.

Hope this helps!

the most prevalent type of antibody in the blood is

Answers

Answer:

IgG is the most abundant antibody isotype in the blood (plasma), accounting for 70-75% of human immunoglobulins (antibodies). IgG detoxifies harmful substances and is important in the recognition of antigen-antibody complexes by leukocytes and macrophages.

Explanation:

IgG is the most abundant antibody isotype in the blood (plasma

Hello, can you help me answer this?
____________________________

-5 sentences with verb in the present tense (the verb in bold)
1:
2:
3:
4:
5:
_____________________________
5 sentences with verb in the past
1:
2:
3:
4:
5:
______________________________
5 sentences with future verb
1:
2:
me:
4:
5:
---------------------------------- ACTIVITY 2 ↓

5 sentences with subjunctive verb mood
1:
2:
3:
4:
5:
________________________________
5 sentences with indicative mood of the verb
1:
2:
3:
4:
5:
________________________________
5 sentences with an imperative verb
1:
2:
3:
4:
5:
_________________________________
(PLEASE HELP ME? I give crown​

Answers

Answer:

(i will bold all verbs)

-sentences with future verb

1. I will go for a run tomorrow.

2. I am going to write my essay later.

3. On Friday, I will walk to the store with you.

4. In ten minutes I will go for a swim.

5. Later I will watch my show.

if the body cells in individuals of a species have homologous pairs of chromosomes, the species is most likely to be
a.eukaryotic
b. haploid
c. diploid
d. prokaryotic ​

Answers

The answer is C: Diploid (meaning there are 2 sets of chromosomes, one set from maternal and one set from paternal)

One CHROMOSOME from each SET will form a homologous pair


If one plant is named Salvia greggii and another is named Salvia vanhouttei, what does this tell you about these plants?

A.) They belong to the same genus and can interbreed.
B.) They belong to the same genus and to different species.
C.) They belong to the same species and to different genuses.
D.) They belong to the same species and can interbreed.

Answers

C.) They belong to the same species to different genuses.

Answer:

They belong to the same species and to different genuses.

Explanation:

the skeletal system is not responsible for which of the following

Answers

Answer:

The skeletal system is the support system for the body. It gives the body shape, form, and mobility while providing protection for sensitive organs. The skeletal system is the support system for the body. It gives the body shape, form, and mobility while providing protection for sensitive organs.

Explanation:

The body is supported by its skeletal structure. It gives the body form, motion, and shape while safeguarding delicate organs. The body is supported by its skeletal structure.

What is skeletal system?

The main structural component of your body is the skeletal system. It is made up of bones and connective tissue, such as ligaments, tendons, and cartilage.

Vertebrates are creatures with a spinal column or backbone, including humans. They are supported by a strong internal framework that is built around a noticeable spine.

Our bodies' living bones use oxygen and release waste products throughout metabolism. They have functional tissues that require nutrients, blood flow, and the ability to remodel or change shape in response to changes in mechanical stress.

The skeleton, which is made up of bones, acts as a rigid framework to support and shield the body's soft organs.

Therefore, The body is supported by its skeletal structure. It gives the body form, motion, and shape while safeguarding delicate organs. The body is supported by its skeletal structure.

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Carbon compounds that come from living organisms are called _____ compounds.

Answers

Answer: organic compounds

The fertilization of an oocyte by more than one spermatozoon which results in embryo death is known as

Answers

Answer:

Monospermy and Physiological Polyspermy. In general, the entry of more than two spermatozoa into the egg cytoplasm, referred to as polyspermy, causes aberrant effects on meiosis completion or embryo development and hence embryonic death, due mainly to excess male centrosomes delivered into the egg.

Explanation:

Do Grocery stores sell toothpaste cost?

Answers

Answer:

Yes they do sell toothpaste in grocery store because toothpaste is a essential thing we use in our daily life. The cost may vary from shop to shop. So we can not tell the cost of the toothpaste accurately.

Explanation:

Answer:

english please that made no sense but yes i do believe that stores sell toothpaste

Explanation:

where is dna found in eukaryotic cells? why is this important?

Answers

Answer:

nucleus and we need dna so we can figure out people in our past

Explanation:

In eukaryotic cells, DNA is present inside the nucleus of the cell. DNA is important because it codes for life processes, and it transfers to the next generations.

What is DNA?

Three subunits, nitrogenous bases, hydrogen bonding, and a phosphorus backbone make up the double helix structure of DNA. It is a component of genetic material found in all living things.

Every organism has a unique strand of DNA. Although DNA is composed of the same components as those listed above, the bases are joined in a different order. Every organism's genetic makeup was altered as a result.

DNA is found inside the nucleus of the cell, and in prokaryotes, it is found in a coiled form in the center of the cell.

Therefore, the DNA is found in the cell's nucleus of eukaryotic cells. DNA is significant because it transmits to subsequent generations and codes for biological functions.

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Someone who needs to import wildlife species for scientific research would need to consult the _____ to determine the regulations on moving that species across international borders.

Answers

The individual should approach the U.S. Fish and Wildlife Service’s International Affairs Program, in other to determine the regulations on moving that species internationally.

This program through coordinated efforts; protect, restore, and enhance the world’s diverse wildlife resources both domestically and internationally but with a greater focus on international species.

There are different categories of wildlife species based on their abundance and distribution. Some are regarded as foreign endangered and threatened species. And the need to protect these species is priceless.

That's why the import/export of these scarce species is regulated and restricted by laws and legislation.

For whatsoever reason, the U.S. Fish and Wildlife Service’s International Affairs Program should be consulted to determine the movement of these species.

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gene regulation can occur only during transcription and translation.

Answers

The statement described is false, gene regulation is a process that can occur at any time during the expression of a gene.

Gene regulation includes all those processes that affect the action of the final products of genes, that is, the regulation of the synthesis of macromolecules is called gene regulation or expression.

This regulation can be carried out at any stage of the synthesis or maturation of the macromolecules, and taking into account many variables it will be developed at the most appropriate point.

One of the most important regulation points is carried out at the level of transcription, since this is the initial stage of transfer of genetic information, control is achieved at the beginning.

Therefore, we can conclude that the pathway that leads from DNA to proteins is made up of multiple stages, and gene regulation can occur at any time during them.

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I NEED HELP IDENTIFYING THE STEPS OF MITOSIS!!! PLZ HELP THIS IS DUE TODAY

Answers

Answer: phases are prophase, prometaphase, metaphase, anaphase, and telophase

Explanation: i hope this helped

PLEASE HELP ME IM TIMED!

Answers

Answer:

Its Only, Oxygen, Nitrogen, and ammonia.

Explanation:

Hope that helped.

Which of the following is (are) part of a systemic immune response?
I. A fever
II. An increase in white blood cells in the body
III. An inflammatory response
I only
II only
III only
I and II only
I, II, and III

Answers

Answer:

l, ll, and lll.

Explanation:

Pathogens that do not usually cause disease unless the host's immune system is weakened or compromised in some way are known as _________ pathogens.

Answers

Opportunistic, hope this is correct! :)

the spinal cord achieves the function of locomotion through __________.

Answers

Answer:

groups of neurons called central pattern generators

The spinal cord achieves the function of locomotion through groups of neurons called central pattern generators, hence option A is correct.

What are the groups of neurons in the spinal cord?

Even when cut off from the brain and sensory inputs, "central pattern generators" (CPGs) nerve networks in the spinal cord can generate rhythmic motions like swimming, walking, and hopping.

In the absence of sensory or descending inputs that contain precise timing information, central pattern generators are neural networks that, when triggered, may create rhythmic motor patterns like as walking, breathing, flying, and swimming.

The spinal cord facilitates the movement of bodily components, accidents frequently result in people being unable to utilize certain body parts like the legs.

Therefore, the spinal cord achieves the function of locomotion through groups of neurons called central pattern generators, hence option A is correct.

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The given question is incomplete, so the complete question is,

The spinal cord achieves the function of locomotion through __________.

a)groups of neurons called central pattern generators

b)pools of spinal neurons that receive input from multiple sources

c)involuntary stereotyped responses to stimuli

d)sensory neurons in the brain that initiate walking and determine its speed, distance and direction

e)a flexor reflex

a)groups of neurons called central pattern generators

1
In (mutualism, parasitism,commensalism) both organisms benefit.

Answers

Answer:

Mutualism is a symbiotic relationship in which both species benefit. Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. Parasitism is a symbiotic relationship in which one species (the parasite) benefits while the other species (the host) is harmed.
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