The overgrowth of algae on the surface of this water is caused by

A) a decrease in the oxygen levels in the water

B) not enough primary consumers in the ecosystem

C) an increase in nitrogen levels in the water from fertilizer runoff

D) an excess of carbon dioxide in the water due to an increase in the number of fish

Vegetation that grows along the floors of tropical and temperate forests is called undergrowth. how is the undergrowth of a tropical rain forest most likely to differ from the undergrowth of a temperate forest? a. a tropical rain forest's undergrowth most likely experiences periods of dormancy during colder weather. b. a tropical rain forest's undergrowth most likely experiences periods of dormancy during rainy weather. c. the undergrowth of a tropical rain forest most likely requires less sunlight. d. the undergrowth of a tropical rain forest most likely requires more sunlight.

Name the organs of humanelemintary canal.

Animals that have thick fur and ae able to store large amounts of body fat live where ?