EXPERT HELP: DON'T GUESS

b

Explanation:

D) A young tadpole has gills, a tail and no legs

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.