Why do concentration gradients exist? A. To differentiate the organelles from the molecules.
B. To contrast between the high and low concentration of molecules.
C. For cells to reach exocytosis
D. For molecules to undergo facilitated diffusion.

Give an example of a trait that is controlled by more than one gene.

Development has provided electrically for less money but what may be considered a cause of nuclear power

Some species of wasps are social. the queen starts a colony from scratch each spring. she builds a small nest, and lays and raises a group of female workers. the workers enlarge the nest while the queen continues to lay eggs. unfertilized eggs become males that mate with newly hatched females. all of the wasps except the newly fertilized females die by the summer. which best describes this behavior? a)it is beneficial only to the males that do not fertilize eggs. b)it is beneficial only to the female workers that are not fertilized. c)it is beneficial to each one of the individual colony members. d)it is beneficial to the whole species, but not to all of the individual members.