Which of the following statements about the extent of earth’s global ocean is correct?
a
it covers more than twice as much of earth’s surface as land covers.
b
it covers more than three times as much of earth’s surface as land covers.
c
it covers about the same amount of earth’s surface as land covers.
d
it covers about half as much of earth’s surface as land covers.

How do adaptation affect a species?

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight. which of these is most likely effect on the ecosystem?