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scoundrel [369]
3 years ago
14

Eutrophication caused by humans is called? 

Biology
2 answers:
posledela3 years ago
6 0
B artificial fertilizer
noname [10]3 years ago
3 0
Answer: D)Artificial Eutrophication
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Which statement best explains why carbon is present in so many kinds of molecules? It is abundant on earth. It can form four cov
FinnZ [79.3K]
The correct option is IT CAN FORM FOUR COVALENT BONDS.
Carbon is capable of forming four covalent bond in order to attain the octet form, this gives it the ability to combine with different elements in different ways. The ability to combine with different elements makes carbon to be abundant on the earth, because it is found in variety of different substances.

4 0
3 years ago
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Which level of life includes all of the other levels in this list: organisms, cells, biosphere, molecules, ecosystems?
Vladimir79 [104]

Answer:

Biosphere

Explanation:

The biosphere is the part of the earth that supports life forms. It includes hydrosphere, atmosphere, and lithosphere. Various ecosystems, aquatic or terrestrial, are present in the biosphere. Biotic and abiotic components of a geographical region that interact with each other together make an ecosystem.

The biotic component of an ecosystem includes all the organisms present in it. Organisms may be unicellular or multicellular. All the organisms are made up of one or more cells. Cells are made up of various biomolecules that interact and enable cells to perform the life processes.

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Senescence of the eyes is often demonstrated by the presence of
ludmilkaskok [199]

Answer: Senescent cells

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Enzymes act as catalysts because ______.
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