Answer:
Primary consumers exist in all biomes and fill a wide variety of niches. They can range from microscopic organisms such as zooplankton to animals as big as elephants.
Explanation:
This means that the micrograph was created by an electron microscope
The ability of a cell or a body to fight against the infection is called immunity. The T cell and B cell helps the body to fight against the infection.
<h3>
What are T cells?</h3>
T cell is also called as T lymphocyte, it is also a important part of immune system. T cell originate in the bone marrow and mature into the thymus.
There are three types of T cells:
- T helper cell
- T killer cells
- T cytotoxic cells.
Helper T cells secrete chemical messengers called cytokines. Regulatory T cells helps to control immune reactions. They are released into blood streams.
Therefore, The ability of a cell or a body to fight against the infection is called immunity. The T cell and B cell helps the body to fight against the infection.
To learn more about T cells, refer to the link:
brainly.com/question/1434048
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Answer:Rachel Carson Book's "Silent Spring" changed the way people thought and treated the Earth by showing the destructive impacts of pesticide use on animal life. Explanation: ... Silent Spring is considered the first worldwide warning against the harmful effects of pesticide use in agriculture.
Explanation:
Answer:
respiration
Explanation:
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