please help this is for a presentation.. Is the spongy parenchyma cell unicellular or multicellular?

After which event could you say that evolution has occurred? question 1 options: an allele frequency changes in a population. a white-eyed fly is born into a population of brown-eyed flies. a new predator comes into an environment. an animal gets fat.

What type of specimens where you able to see under each of the microscopes in the microscope activity

Which organelle plays a role in intracellular digestion?