What distinguishes a virus from a bacterium?

Which process is part of the carbon cycle? A. Evaporation B. Transpiration C. Cellular respiration D. Fixation

Are the cells that make up heart tissue prokaryotic or eukaryotic

Typhus is: A) treated with antibiotics B) can be prevented with a vaccine C) is most common during the spring and summer D) all of the above

The chemical breakdown of rocks by the action of other rocks and sand particles is called

What factors can lead to drought formation? Select all that apply. Below average rainfall in a region for several months Not enough rain to be absorbed into the ground before evaporating Cutting down trees and overuse of land Hot dry air masses

Ducks and beavers both have webbed feet

What is the term for brief episodes of neurologic deficit caused by temporary interference with blood supply to the brain?

Which of these celestial bodies has a tail? a-asteroid b-comet c-moon d-planet

What is the function of myeloma cells used in the production of monoclonal antibodies?

Describe a simple nervous system. Give an example of an organism that has a simple nervous system.