A lack of blood flow determines the number of cell layers that can
survive when they are transplanted
It’s B, having variation from sexual reproduction because the two parent mix genetic information so they have more of an advantage
Hypothesis is what you think will happen before the experiment, it isn't necessarily backed up by any sources or evidence. A scientific law is the observation of a phenomenon and a theory is the explanation both can be used together to back each other up.
Striated. But the lithosphere is made up of metamorphic, sedimentary, and igneous
