This is an area of the ocean where bottom layers of water, which are colder and richer in nutrients, are forced up to the surface. This is an area of high productivity.

a. upwelling

b. aphotic zone

c. pelagic zone

All objects are composed of atoms. The electrons contained within the objects' atoms are prone to move or migrate to other objects.

Explain the change in size of population from 1961 to 1977 in terms of birth rate and death rate. assume immigration and emigration rates were equal during this time

Organism developer from eggs to adult is Called

What did Mendel Conclude determines biological inheritance

The ability of a person's cardiovascular system to compensate for blood loss is MOST related to: Select one: a. how rapidly he or she bleeds. b. the part of the body injured. c. his or her baseline blood pressure. d. how fast his or her heart beats.

What type of messages do neurons deliver to one another

What kind of cell has a large, central, vacuole

What does it mean if a plant responds to touch

In Drosophila melanogaster, the recessive allele for the sepia locus (se) causes flies to have very dark colored eyes. The recessive allele at the apterous (ap) locus causes the fly to lack wings.

A mature red blood cell has no nucleus. As a result, it cannot?