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Papessa [141]
3 years ago
15

For photosynthetic organisms to evolve and become more abundant than chemosynthetic organisms, what variable must have changed i

n the environment of ancient earth? carbon dioxide must have become more abundant. nitrogen must have become more abundant in the atmosphere. oxygen must have become more abundant. endosymbiosis needed to occur between a smaller prokaryote and a larger prokaryote.
Biology
1 answer:
ValentinkaMS [17]3 years ago
8 0
The evolution of organisms are based on the resources available in order for it to be capable of growth still. In the given choices above, the substance or chemical that changed over time is the supply of carbon dioxide which is an essential substance for photosynthesis. Thus, the answer the first choice. 
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So the problem ask to choose among the following choices that has the factor of f(x) if a polynomial function f(x) has a roots 4-13i and 5, base on that, the answer is not in the choices, base on my computation, the answer is f(x) = (x-y+13i)(x-5), I hope you are satisfied with my answer 
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Explanation:

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Which of these describes a quantitative observation?
Sergio [31]

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Explanation: The answer is D. An observation that has a number associated with it. I would explain further, but it is pretty self explanatory.

<em>Good luck!</em>

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