Answer:
1. True
Biotic factors can have effect on abiotic factors like water by the way they use it and how much they drink. If biotic factors drink too much water in a rivver then it could end up with limited amount of water for the ecosystem.
2. False
On average, about 50 percent of energy available within one trophic level is transferred to the next trophic level.
3. True
Extirpation is extinction of a species in a given area.
False. mutations are not always life threatening.
Answer:
pls mark me brainliest. the answer
Explanation:
Mollusca are soft-bodied, bilaterally symmetrical, segmented, coelomate animals; usually shelled having a mantle, ventral foot, anterior head, and a dorsal visceral mass.
Answer:
C. The dark colored moths chose to mutate to become adapted to dark-colored trees.
Explanation:
In the given data, the population of light colored moths decreases in dark colored tress while the population of dark colored moth increases in dark-colored trees.
The concept is based on natural selection in which dark color moths undergo mutation to adapt to dark colored trees. This mutation provide camouflage to dark colored moths and increases their population in comparison to light colored moths.
Hence, the correct option is "C".
