Cancer occurs when signals for are blocked or misinterpreted. a) apoptosis b) endocytosis c) exocytosis d) mitosis

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

Study the image of this rock.which characteristic best supports its formation from sedimentary processes? it has many layers.it is coarse-grained.its grain shape is round.its texture is non-banded.

How does natural selection change thephenotypes within a population over time?