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Monica [59]
2 years ago
9

. A student builds a plant cell model by arranging different foods in a bowl.

Biology
1 answer:
kramer2 years ago
6 0
A: no explanation since it it seems extremely obvious
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How do antigens and antibodies interact? PLEASE HELP NO LINKS PLEASE
Luda [366]

Explanation:

There are several types of antibodies and antigens, and each antibody is capable of binding only to a specific antigen. ... Antigens are bound to antibodies through weak and noncovalent interactions such as electrostatic interactions, hydrogen bonds, Van der Waals forces, and hydrophobic interactions.

Antibodies attach to a specific antigen and make it easier for the immune cells to destroy the antigen. T lymphocytes attack antigens directly and help control the immune response. They also release chemicals, known as cytokines, which control the entire immune response.

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alexira [117]
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How can we bring back lost nutrient   in   the soil without direct application   of   fertilizer?​
bazaltina [42]

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Explanation:

Crop rotation

Rotation of crop is important to help conserve nutrients that are available in the soil and prevent total use up of the nutrients. The same type of plants all year round on the same soil keeps on draining the land of the same nutrients needed for their growth. Rotation of different can help maintain soil nutrients level as some crop fixes nutrients in the soil.

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Composting is the process of decomposing organic matter this could include animal waste such as dung,leaves both green and dead, kitchen. This waste are stored up, little water is added to moist and then allow to decompose it can be mixed together after few days to aerate after. After decomposing to form compost it can be added to the soil. It is usually rich in nutrients.

4 0
3 years ago
Why do you need more oxygen when you exercise scholar?
yulyashka [42]
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maybe 1:00????

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