Answer:
the answer is C. the lymph system
In any ecosystem, there are factors to control populations.
In a stream, the predators of a certain organism will help keep populations checked. Moreover, the limited resources, such as space and food, will keep the population from growing out of control.
Answer:
Explanation:
The things that are changing in an experiment are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled
The answer is B because it’s burning coal and nutural gas
Our cells reproduce so that we may grow and regenerate, the process of cellular reproduction is also the basis for human reproduction. Cellular reproduction is a means of creating new life.
