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Masteriza [31]
2 years ago
11

A student measured the amount of oxygen and carbon dioxide dissolved in an aquarium containing an aquatic plant and a snail. Why

did the amount of dissolved oxygen decrease when the aquarium was kept in the dark for 10 hours?A. Because photosynthesis could not occur   B. Because the plant died   C. Because the snail died   D. Because cellular respiration could not occur
Biology
2 answers:
marissa [1.9K]2 years ago
4 0

Answer:

A. Because photosynthesis could not occur

Explanation:

ratelena [41]2 years ago
3 0

The answer is A. Putting the aquarium in the dark means that the aquatic plants will not be able to photosynthesize.  The process of photosynthesis produces oxygen as a by-product. The oxygen is used by the fishes in respiration and release carbon dioxide. The carbon dioxide is used by the aquatic plants in photosynthesis.

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8 0
2 years ago
Multicellular organisms must be protected from the external environment. Because of this, cells of even the simplest multicellul
mihalych1998 [28]

Hey there!!




Your answer is epithelial tissue. This tissue is the one that does it part to protect all of the other cells around too or form the external barrier.




Hope this helps!!


Sincerely,

Ans

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matrenka [14]

Answer:

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Answer:

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