Zebras are classified as vertebrates because they have

What is called the "building block" of life?

The following image is of a diatom. it lives in water and gets food from photosynthesis. it is encased in a hard shell made of something similar to glass or sand . a diatom is a(n) because it has a) multi-celled organism; specialized parts. b) vertebrate; a skeleton. c) insect; an exoskeleton. d) single-called organism; only one cell.

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