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.
Answer:
The answer is C. genetic drift
Explanation:
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Answer:
Explanation:
The population of squirrel is decreasing and this can be traced to the environment not being favorable for their growth and development.
Looking at the data generated,
Died from predation =2
Born=4
Immigration=10
Left to find food =3
Died from disease=8
Left to find mate=3
If all the squirrel did not abandon their habitat and they all live there a total of 2+4+10+3+8+3= 30 squirrel would have been present, but given that only 4 were born and that others left for another place the population is reduced to 4 and 26 squirrel gone this has lead to a reduced population.
