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Whitepunk [10]
3 years ago
5

NEED HELP ASAP!! WILL MAKE BRAINLIEST - 25 POINTS

Biology
1 answer:
djverab [1.8K]3 years ago
3 0

Answer:

a and d

Explanation:

the birth and death rates are important, they are they  numbers in which a population is

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Photosynthesis need three major components. these are H₂O, CO₂ and light, all these components are abiotic part of ecosystem. However, when secondary succession occurs, then light play a key role in changing the composition of plant community. The best example is the difference in height of plants of different community.
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