Most enzyme fall into what group

A researcher is trying to construct a molecular-based phylogeny of the entire animal kingdom. Assuming that none of the following genes are absolutely conserved, which of the following would be the best choice on which to base the phylogeny?

Which is the final product of ecological succession? A. climax community B. ecosystem C. secondary succession

While preparing a lab, you remove a culture of prokaryotes from their incubator and place them, still alive, on the bench at 25 degrees Celsius. All die within 2 hours. The culture probably contained which prokaryotes?

A nurse in the emergency department is caring for a 9-year-old child with a suspected spinal cord injury sustained while falling off a bicycle. what is the initial nursing action?

What are the cell structures where proteins are made?

What is the effect of sickle-cell anemia? a. Blocked respiratory pathways. b. Decreased neurological functions. c. Inefficient oxygen transportation. d. Susceptibility to contracting malaria.

You are exercising on a hot day your body temperature goes up. You begin to sweat. The sweat cools your body. The rise in your body temperature that signals start sweating is an example of: input. Output. Feedback. Process.

Arteriole blood pressure increases in response to all but which of the following? A. increasing stroke volume B. falling blood volume C. rising blood volume D. increasing heart rate E. all of these

Small islands can form during the constructive process called A) erosion. B) glaciation. C) deposition. D) weathering.

Elliptical galaxies are egg shaped galaxies without spiral arms or interstellar gas and dust. True or false