What type of organisms first move into an area after a primary disturbance?
O
A. Organisms that do not reproduce often
O
B. Plants that need lots of shade to grow
O
C. Animals that prey on small animals
D. Small animals that can live in severe conditions

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

Which way do the nitrogenous bases in dna pair up? a. a and g; t and c b. a and c; t and g c. a and t; g and c d. a and a; t and t; g and g; c and c

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