Which one of these is not an example of intracellular communication?

a. a signal is translated to cause a muscle to contract.

b. chemical messengers dock onto receptors of adrenal gland.

c. water regulation by a cell's central vacuole.

d. charged ions distributed across a plasma membrane.

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units:

Individuals within populations exhibit some diversity. as a result of possessing slightly different traits, some individuals are better able to survive and reproduce than others. if these individuals changes in the characteristics of the population may occur over time. the cumulative change in these characteristics is known as

Aliquid solution can be made select all that apply. dissolving solids into liquids, mixing liquids, dissolving gas solutes into liquids , mixing gases, mixing solids