Which area of the United States has the least risk of earthquakes?

a. eastern

b. central

c. western

d. southern

Phytochrome plays a critical role in seed germination. which of the colors maximizes the seed germination?

2. Which characteristic would NOT be passed on by a gene? A. Pink fur B. Webbed feet C. Brown scales D. Broken wing

Two kittens are sleeping by a furnace vent. they are relying mainly on what kind of heat transfer?

Could life as we know it exist on earth if air contained only oxygen

Which physiological change occurs as part of the fight-or-flight mechanism?

How many poops does he average human take

What describes the long history of earth

A Ligustrum plant cell is exposed to an aqueous solution having sodium and chloride concentrations higher than the sodium and chloride concentrations of the cell interior.

2. Why is nuclear fusion able to sustain the life of a star over a long period of time without the input of outside energy?

Which area of the brain is located at the rear base of the skull?