The dorsal side of the frog is the back of the frog, where the spine is.
Answer:
A
Explanation:
Earth revolves around the sun
I took a test on this
Answer:
Osmosis
Explanation:
Water molecules move in and out of a cell through osmosis.
Answer:
DNA, found within the nucleus, must be replicated in order to ensure that each new cell receives the correct number of chromosomes.