Only the last one provides an actual evidence of having a common ancestor. The rest can be a result of living in a similar environments that makes life easier. For example, many species live next to water, as water provides more fertile ground for plants, and they might have similar behaviors (searching for water) but they might not be closely related.
so the correct answer is D.
A large and naturally occurring community of flora and fauna occupying a major habitat
Flowers that are in bunches and bright in color may apply pollinators
The pig embryo or fetus are both developmental stages in a pig's life cycle from conception and leading up to birth. The embryo and the fetus should be found in the uterus lining of the female pig, as this is where conception would occur and where the fetus will develop until it is ready to be born.
The onset of menopause will indicate about how many of
immature remains in the ovaries, during middle age, estrogen levels will start
to drop in which egg cells will start to stop to be produced in a female’s body,
the remaining immature egg cells will die.
