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tangare [24]
3 years ago
7

During which eon did oxygen begin to build up the most in Earth’s atmosphere? a.)Phanerozoic b.)Proterozoic c.)Hadean d.)Archean

Biology
1 answer:
NNADVOKAT [17]3 years ago
5 0

phanerazoic

if there was no oxygen then why were there dinosoars

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Organisms with gametes of the same shape but different sizes
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Gametes that are the same in size and shape. Having gametes of different size and shape. Usually oogamous organisms have eggs and sperm. The female gonad in animals.

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1. How did you revise your sequence from your initial idea ? Explain how you decided on the sequence. For the Natural Selection
liberstina [14]

Natural selection is the idea that  organisms that posses favorable traits that enable them to survive in their environment are the ones that live long enough to pass on these traits to their offspring.

<h3>What is natural selection?</h3>

The question is incomplete but I will try my best to explain the idea of natural selection.

The term natural selection refers to the idea put forward by Charles Darwin that organisms that posses favorable traits that enable them to survive in their environment are the ones that live long enough to pass on these traits to their offspring. This is also called the survival of the fittest.

Learn more about natural selection: brainly.com/question/2725702

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2 years ago
Garrett notices a small island has formed off the coast of his hometown in Florida. Which of the following best describes what c
Snezhnost [94]
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8 0
3 years ago
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Answer:there always living

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What is meant by "antiparallel" strands of DNA?
nataly862011 [7]

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DNA double strands are run in opposite direction  

Explanation:

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