B) Vacuoles allow water to enter and exit the paramecium.
Answer:
A dam that could allow fish to still pass through is a fishway/fish pass its a "fish ladder" that is structured on or around artificial or natural barriers to allow for fishes natural migration and the movement for potamodromous species.
The answer is reproductive isolation. Reproductive isolation ensures members of different species do not produce offspring. In this case, geographical separation is ensuring that individuals from the two different populations are not able to mate with each other. Eventually, through different selective pressures, the two populations will diverge sufficiently in genotype to become distinctly different.
Answer: I feel that the theory of plate tectonics is correct, because we use friction every day which means friction could make vibrations larger too!
The answer your looking for is the insula. Hope this helps.
