A. Consumers cannot produce their own food source so they have to eat other animals.
C. Rhizobia bacteria "prepare" the atmospheric nitrogen and make it useful for the plant.
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Answer:
The treatment of wastewater with microbes.
Explanation:
It would be the best because Waste water management is the serious issue in today's world!
Natural selection only acts on the population’s heritable traits: selecting for beneficial alleles and thus increasing their frequency in the population while selecting against deleterious alleles and thereby decreasing their frequency
C: replicate a gene without using bacteria
