When do you know the moon phases have ended?

Which characteristics correctly describe prokaryotic cells? (Select all that apply.) A. have no nucleus B. have a nucleus C. have membrane-bound organelles D. have no membrane-bound organelles

The breakdown of pyruvic acid in the presence of oxygen is called

A polymer is a link of?

Which process increases the salinity of ocean water? a. the Coriolis effect c. evaporation b. convection currents d. continental deflection

While discussing the various chemical properties of nutrients in the body, the class discusses that differences between anions and cations. What mineral is the major anion in the extracellular fluid?

Which type of cytoskeletal element is described as a solid

Energy related usage in the United States makes up nearly what percentage of human-caused greenhouse emissions? A 57% B 63% C 72% D 85%

One function of the chromosomes in a cell is to A. absorb light and create energy for the entire organism. B. transport proteins throughout the cell and to other cells in the body. C. provide a location for protein synthesis inside the cell. D.

Consider the Ras signal-transduction pathway. Suppose a mutation occurred in the gene that encodes the transmembrane receptor to which a growth factor binds. The mutation no longer allows the growth factor to bind to the receptor.

Which of these have prokaryotic cells? A. snails B. bacteria C. frogs D. food