Soil?
The atmosphere?
Air?
I don't understand how you want this question answered
Answer:
Genetics
Explanation:
Heredity refers to one's genes
So, the population went up with every spring season and fell slightly in the winter; it increased within the course of 10 years
Question 4: Each parent would contribute one allele
Question 5: A white flower allele is presented in both homologous chromosomes (it would have to be in both because it is recessive)