Answer:
cells are the smallest unit of life
Explanation:
A is the Stigma and B is the Style
The stigma is part of a pistil Where pollen germinates and it provides receptacle pollen
The style is is where pollen deposits
It is caused by changes in the suns position in the solar system
Families I think
Because usually when a organism is a a similar type of species the scientific names have some type of similar root. So that crosses out everything else so that’s the only option available