What forms the structure called a coral reef?

a. skeletons of coral animals

b. deposits of coral rocks

c. cementation of crystals

d. particles of clastic rocks

When the source of energy is not sunlight but hot, inorganic sulfur compounds, organisms make food from this energy through the process of?

Anna lives in a city that experiences high precipitation

Use the drop-down menus to complete the statements. Two people, Steve and Nancy, both live in Boston, Massachusetts. Steve and Nancy are. Since they are both human, they are part of the same. Because they both live in Boston, they are in the same.

What are the bonds that hold two amino acids together called?

Put these events in the correct chronological order from earliest to latest

What is the function of the cell membrane? A) to give shape to the cell B) to increase the number of cells C) to control what enters and leaves the cell Eliminate D) to produce macromolecules within the cell

The incidence of Down syndrome, also known as trisomy 21, increases with increasing maternal age. Which of the following errors most likely produces this condition? A. Nondisjunction during meiosis II in either the male and female gameteB.

In a successional community, some kinds of organisms like fungi or beetles are present in every stage of succession.

What's responsible for preventing the gas giants from collapsing into a star?

If both species are harmed, it is a commensalistic interaction. or a. True b. False