A person who studies why plants and animals live in some places and not in other places is called a

An ecologist studies the ecology and how each species fits into its what?

An ecologist is a person who is also an .....?

biologist

echosystem

environmentalist

ecologist

ecosystem

evangelist

physicist

ecolsystem

epigrammatist

Ecologists who studied snakes in Thailand warned that if the killing of snakes continued the rice crops would ....?