Food chains are diagrams that show food energy passes on through ecosystems. There are five different trophic levels in food chains. Primary producers are usually plants which produce their own nutrients. Primary consumers gain their energy by consuming primary producers. Secondary consumers then consume primary consumers, and tertiary consumers consume secondary consumers. The last level consists of apex predators, which are at the top of the food chain and have no natural predators.
Food webs are made up of many smaller food chains. While food chains follow one path in which specific animals find food, food webs follow multiple paths, usually showing how an ecosystems organisms have food relationships.
More than you would think .. i know that much
1. england builds many factories during the industrial revolution. this puts tons of pollution in the air.
2. after several generations, most moths in england are black in color.
3. the trees in england are white, the black moths are eaten by birds more frequently because they cannot blend into their environment.
4. the trees in england are black. the black moths can blend into their environment.
5. more black moths live and reproduce. many white moths are eaten.
*i don't know for a fact if these are right but i tried ♡*
Answer:
D
Explanation:
Stem cells develop into many different cell type in the body.
