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cupoosta [38]
3 years ago
5

What is an antigen?

Biology
1 answer:
Virty [35]3 years ago
5 0

Answer:

In immunology, an antigen is a molecule or molecular structure, such as may be present on the outside of a pathogen, that can be bound by an antigen-specific antibody or B-cell antigen receptor. The presence of antigens in the body normally triggers an immune response.

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Match each example with the subsystem it belongs to.
nataly862011 [7]

Answer:

igneous rocks - geosphere

oceans, frozen lakes - hydrosphere

gaseous nitrogen - atmosphere

sea animals, marine plants - biosphere

Explanation:

6 0
3 years ago
What sexual selection does the Cuban greater funnel-eared bat (Natalus Primus) have?
Zinaida [17]
The answer is : <span>There seems to be no evidence of </span>sexual dimorphism (sexes alike). The Cuban greater funnel-eared bat (Natalus Primus) have no evidence sexual dimorphism.  Meaning they are <span>monomorphic.</span>
6 0
3 years ago
Humans produce skin cells by mitosis and gametes by meiosis. The nuclei of skin cells produced by mitosis will have
ale4655 [162]

Answer:

The nuclei of the skin cells produced by mitosis will have identical genetic material as that of the parent cell.

It is because mitosis is a type of cell division in which a parent cell divides into two daughter cells, each having equal and identical chromosomes as that of the parent cell.

In addition, events like crossing over do not take place due to which no genetic variation is developed in the daughter cells.

The process of mitosis is mainly involved in the repair and growth of the body.

4 0
3 years ago
Read 2 more answers
Giving a child extra credit for helping in the class is an example of?
alina1380 [7]

Answer:

<h2>Positive Reinforcement and Operant Conditioning </h2>

Explanation:

<h3>thanks me later </h3>
3 0
3 years ago
To grow, plant cells must produce new components of the cell membrane, including phospholipids and membrane proteins. Components
Makovka662 [10]

Answer:

endoplasmic reticulum

Explanation:

ER is full with proteins than help to synthesize phospholipids in plant cells

4 0
3 years ago
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