Answer: Gregor Mendel
Explanation: He's the scientist that first studied them and made great progress in genetics.
That would be Artificial Selection.
Answer:
The options are
A) they may affect several populations in an ecosystem
B) they cannot be caused by human activity
C) they affect food chains but not food webs
D) They have no effect on living organisms in an ecosystem him
The answer is A) they may affect several populations in an ecosystem
Explanation:
Environmental changes include deforestation and climate changes. Organisms depend on their habitat and climatic conditions for their survival because it determines their food availability too.
When environmental change occurs they may affect several populations in an ecosystem.
Answer:
Fuel cell electric vehicles are powered by hydrogen
they only emit water vapor and warm air
Explanation:
Answer is Nitrogen...............
