Greater salinity means greater
a. density
b. altitude
c. pressure
d. temperature

What problem would a person have if the nucleic acid in one of his or her cells were damaged?

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll