A leech attaches to an animal and feeds off the animal's blood. What happens to the animal the leech attaches to in this scenario?

It loses nutrients to the leech.
It gains nutrients from the leech.
It will be killed and eaten by the leech.
It will kill and eat the leech.

Types of scientific inquiry that biologist engage in that cannot be completely controlled

Besides regulating what enters and leaves the cell, what is another function of your choice from question #1?

Select the correct answer. which of the following statements is a scientific claim? a. the early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water. b. the mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency. c. planet earth is abundant in water, but there is no way to scientifically determine from where earth's water originated. d. earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea.