What describes the many different species of plants and animals?

Explain why process 2 is so important to sexual reproduction identify processes 1 and 3 state one difference between the cells produced by process 1 and cells produced by process 3

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important