Which best explains why muscle cells have more mitochondria than skin cells? A
Muscle cells divide more often than skin cells.
B
Muscle cells make more protein than skin cells.
C
Muscle cells require more energy than skin cells.
D
Muscle cells break down more waste than skin cells.

How do symptoms created by inflammation the doctor

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings

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.