Answer:
Trees give out oxygen to the earth. Plants grow vegatables and fruits for people on earth.
Explanation:
The answer is B
A keystone predator would increase niche diversity and help reduce niche competition <span />
Microbiology studies organisms too small to be seen with the naked eye
Answer:
Averaging the fitness of its members.
Explanation:
The fitness of a whole population can also be determined by averaging the fitness of its members. Absolute fitness is the ratio between the number of individuals with a genotype before selection versus after selection. Fitness is usually discussed in terms of genotypes, or collection of genes.
