Ff- father
ff- mother
i am pretty sure just learned it like 3 yrs ago if not then its the opposite
-Both are organisms that must use energy to synthesize organic compounds
-Both require sunlight in order to survive
It increases ecosystem productivity, protects fresh water resources, and provides nutrient storage and recycling
The answer is The Doppler Effect. It is named after the Austrian physicist Christian Doppler, who described the phenomenon in 1842.
Humans are warm blooded and can't be cold blooded because of the environment we live in. We can't sit still during the winter and soak up warmth from the sun.
