What is a substrate?

A.) a molecule that changes state

B.) a place where the reaction occurs

C.)

D.) a reactant that is catalyzed by an enzyme

Before viruses can reproduce, they must A. replicate the contents of their nucleus. B. undergo binary fission. C. infect a host cell. D. initiate the cell cycle.

Which scientist studies biotic factors? A.) meteorologist B.) anthropologist C.) hydrologist D. ) climatologist

What type of connective tissue is composed of many interwoven and randomly organized collagenous fibers?

On the average, most mammals are аbout: A. 90 B. 50 C. 40 D. 70, percent water

Which of these is true of meiosis? a. 2n → n b. n → n c. n → 2n d. 2n → 2n

What is a pigment in general?

Where can cells that are able to differentiate be found?

An organism is described as 2n = 28. How many chromosomes are in one mitotic cell during telophase?

Where does chemical digestion start in the body?

35. Which of the following techniques will slow a chemical reaction? A introduce a catalyst B increase the available surface area of reactants C raise the concentration of reactants D decrease the temperature