Which best describe the climate of the Cenozoic? complete ice coverage for the entire era

unusually high temperatures the entire era
early warmth followed by an Ice Age

cold and dry followed by a period of glaciation​

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system

Describe how a student should adjust the microscope to see the cells on a slide more clearly?

Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.