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Luba_88 [7]
2 years ago
6

What factor are necessary for natural selection to occur?

Biology
1 answer:
sergeinik [125]2 years ago
8 0

1.Reproduction

2.Heredity

3.Variation in fitness or organism

4.variation in individual characters among members of the population

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Describe how energy and matter flow, interact and change forms throughout the<br> Earth system
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Energy and matter characterize both physical and biological systems. These systems are defined both by the types of energy and matter they contain and by how that matter and energy move through and between systems. ... This means that energy and matter can change forms but cannot be created or destroyed.
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The calorie used on food labels is equal to
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The answer is 25%.

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