The opening of stomata is thought to involve:.
a. an increase in the osmotic concentration of the guard cells.
b. a decrease in the osmotic concentration of the stoma.
c. active transport of water into the guard cells.
d. decreased turgor pressure in guard cells.
e. movement of K+ out of guard cells.

Which plains area lies in both the united states and canada? altiplano central canadian shield coastal plains great plains

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.

Talking listening and reacting non verbally are all part of communicating