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Sati [7]
3 years ago
12

Which protein presents viral antigens on the outer surface of cells? which protein presents viral antigens on the outer surface

of cells? antibody. mhc protein. t cell receptor. b cell receptor?
Biology
1 answer:
Degger [83]3 years ago
8 0
T cell receptor presents viral antigens.
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Which of these is not a subatomic particle? proton ion neutron electron
Greeley [361]
I think protonion is a subatimic particle
3 0
3 years ago
Explain the characteristics scientists use when observing organisms and placing them in the six kingdoms .
Rus_ich [418]
<span>The characteristics that scientists used to classify living organisms into six kingdoms include the following:
1. Cell type: living organisms are classified into prokaryotes and eukaryotes based on the presence of nucleus and distinct arrangement of the organelles in their cells.

2. Mobility: living organisms are categorized into kingdoms based on their ability or inability to move about.

 3. Cell structure: the cells structure was used to divide living organisms into plants and animals. Those living organisms that have cell wall are classified as plants while those who do not have cell wall are classified as animals.

4. Number of cells: living organisms that are made up of only one cell are classified as unicellular while those with many cells are termed multi cellular.

 5. Reproduction method: living organisms are classified based on whether they reproduce sexually or asexually.

6. Manner of obtaining energy: living organisms that can prouduce their own food are called autotrophs while those that can not produce their own foood are termed heterotrophs. Plants are essentially categorised as autotrophs while animals are described as heterotrophs.</span>
6 0
3 years ago
Organic compounds consisting of various compounds of sugar are generally called
bija089 [108]

Answer:

The correct answer will be- carbohydrates

Explanation:

The carbohydrates are one of the four abundant biomolecules which are composed of the polymers of the sugar molecules.

The carbohydrates play important roles in the organism from a structural entity to storage functions. The carbohydrates formed of one type of sugar are known as monosaccharide, of two sugars are known as disaccharide  and the more than two types are known as polysaccharides.

Thus, carbohydrate is the correct answer.

4 0
3 years ago
Cells can interact by releasing proteins or other molecules as chemical signals. How do cells receive these signals?
____ [38]

Answer: Cells typically receive signals in chemical form via various signaling molecules.

4 0
3 years ago
Nutrients perform three major functions in the human body. among these is (are):
Firdavs [7]
Regulate body functions, promote growth, And repair tissue
8 0
3 years ago
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