Biology, 29.06.2020 06:01 kimberly01262016
Which of the following correctly explains why the first anaerobic organisms on earth are not classified as autotrophs?
A. Chemicals were not available for these organisms to produce their own food
B. oxygen was in abundance and it was more efficient to eat food rather than make their own
C. carbon dioxide was not present on earth at that time
D. The first organisms did not have sunlight available to make their own food
Answers: 2
Biology, 22.06.2019 06:30
What is the problem in this article? what solution does the article propose?
Answers: 3
Biology, 22.06.2019 22:30
Water changes bacteria in the soil converts this nutrient into a usable form. plants take up the usable nutrient through the soil and assimilate it into proteins, making it part of the plant. an animal eats the plants, and the nutrient becomes part of the animal. when the animal dies, it decomposes, returning the nutrient back to the soil. which cycle is being described? water cycle carbon cycle nitrogen cycle phosphorous cycle
Answers: 1
Which of the following correctly explains why the first anaerobic organisms on earth are not classif...
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