A DNA segment is changed from -AATTAG- to -AAATAG-. This is a a. substitution mutation
C. inversion mutation
b. translocation mutation
d. deletion mutation

drfgt dfs f grftsrh fg rts gh   htr hr rs t

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

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: