RNA differs from DNA in that RNA:

A. Contains a different sugar molecule

B. contains the nitrogen bass uracil

C. All of the above

A local factory has been dumping chemicals into a nearby river that resulted in the death of many aquatic dwelling organisms.

Factors for which organisms are competing in a given habitat

When sodium metal is placed in water it releases large amounts of heat and light. What kind of a reaction is this an example of? A. a fusion reaction B. a fission reaction C. an exothermic reaction D. an endothermic reaction

A mutation occurs in an operon that prevents the transcription factor from binding to its recognition site on the dna.

Which natural methods remove CO2 from the atmosphere?

Whats medical term for state of a fast heart?

The mathematical symbol for period is ОА. Т ОВ. А O co v OD. f

A rock is classified as

Which of the following types of compounds is unlike the other three A - Wax B - Saturated fat C - phospholipid D-polysaccharide

What predictions can researchers make based on the egg viability hypothesis?