Look at the picture below. What does this picture represent?
A. Atoms that are ions

B. Atoms with a covalent bond

C. Atoms with no bond

D. Atoms with an ionic
bond

How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

Which of the following is a testable hypotheses?