Answer:
Senior mothers are also under pressure to share food with their sons, so that they're able to reproduce as well. It also makes sense for these mothers to assist their sons because as the mothers grow older, they are increasingly related to whales in other, neighboring pods via their sons' calves.
Answer:
D
Explanation:
obviously being a biologist a person would choose to research and perform tasks related to bios I.e something which is living
Answer:
a difficult to identify
Explanation:
you can identify this type of fossil by the following-
distinctive, widespread, abundant, and limited in geologic time.
