Answer:
Although an individual gene may code for a specific physical trait, that gene can exist in different forms, or alleles. ... In other cases, each parent provides a different allele of a given gene, and the offspring is referred to as heterozygous ("hetero" meaning "different") for that allele.
Answer:
chemicals are dumped into lakes and rivers
Explanation:
all the other choices are results of cutting down trees
D) the earthworm measurement is accurate because moore subtracted the beginning and ending points from the ruler
Answer:
plant leaves contain openings called stomata, which allow the diffusion of gas exchange
