Answer:
D
Explanation:
It is often like this: cell->tissue->organ->system
Answer: One way of creating a variation in a population is through genetic replication errors. This will make a new type of alleles. Environmental factors cause variation such as affecting enzyme activity and function. The changes would show in the phenotype of an organism.
Explanation: thus is one way ik for sure another way idk srry
Feral hogs is the right answer
Answer:
they male contain 2 seeds
