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katovenus [111]
3 years ago
10

The use of oxygen-18 (heavy oxygen) has aided biologists in determining that O2 released in photosynthesis comes from the chemic

al breakdown of water. Which organisms did the biologists most likely use in their investigation? A algae B paramecium C arthropods D fungi
Biology
1 answer:
Margaret [11]3 years ago
8 0

Answer:

The correct option is A. Algae

Explanation:

Algae is the best possible answer because the process of photosynthesis can be carried out only by plants, algae and cyanobacteria.  Hence, option A is correct. These organisms are called autotrophs as they are capable of making their own food.

Other organisms like paramecium, arthropods and fungi are not capable of photosynthesis. These organisms like arthropods are called heterotrophs. They do not make their own food and feed on other organisms for food.

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If 15% of a DNA molecule is made up of cytosine, what percentage is thymine? Explain your reasoning.
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Explanation:

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3 years ago
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Answer:

fast growing and produce many offspring

Explanation:

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