The answer is B. Genetic drift greatly affects small populations, but large populations can recover.
The correct answers:
Matter in an ecosystem: must be continuously replenished, is recycled and reused, is returned to the earth by decomposes.
In a balanced ecosystem: producers is greater than the number of consumers, primary consumers is greater than the number of secondary consumers, secondary consumers is greater than the number of tertiary consumers.
A. They act as catalysts, are for one specific reaction
Answer:
Carbon dioxide creates oxygen so we can breathe and seperates it from glucose
All species and humans breathe fish have gills to breathe underwater so not just animals have respiration.
Explanation: