What do you call the flexible layer which separates the inside of a cell from the environment?
a. nucleus
b. ribosomes
c. cell membrane

d. mitochondria

Which example describes a mutualistic relationship between organisms? young wasps prey on caterpillars. crabs eat the remains of dead fish. tapeworms feed on food in the intestines of cats ants protect a tree on which they feed.

This is a scaffolding of protein fibers that us sell keep it shape in a cell division and cell movement

If a checkpoint detects damaged dna, the checkpoint may