How are igneous rocks formed?

a. lava or magma cools and then crystallizes.

b. sediments deposit in a lake and turn to stone.

c. heat and pressure from nearby magma changes existing rock.

d. lava or magma heats up and crystallizes.

Which answer best explains why ATP is regarded as a renewable resource within the cell?

What happens to glycolysis if the oxygen is present

The contracting and relaxing of muscle is regulated by the amount of calcium present in the cells of muscle fibers. these cells must be able to move to the calcium ions from areas with low concentrations to areas with high concentrations.

Unlike mammals, fish A. need oxygen to survive B. release carbon dioxide C. can take in oxygen from the air D. utillze gills for gas exchange

Jerome and Frank both have genetic disorders. Jerome experiences weak muscles and Frank often loses his memory. Which most likely describes their diseases

Who are indian here?

Explain why the direction along which the electromagnetic wave travels is not the same as the direction along which the changing electric field is applied.

Which organisms transform nitrogen to a form that is useful to plants? bacteria animals algae humans

Explain how a shortage of water affects the health of your cells.

Name the appendages used for movement by organism belonging to protista