Topographic map shows elevation change
Answer: Extinction has occurred.
Explanation:
In psychology, the extinction refers to the process of weakening of a conditioned response by the respondent. This actually results in decrease or disappearance of a particular behavior response.
In the given situation, the dog is showing the trait of salivation in the behavior but after the occurrence of number of trials the dog is not receiving any food this is a tiring situation for dog which made it to stop salivation. Thus here, the extinction of behavior that is salivation has occurred.
A. Water will go into the cell through the cell membrane by simple diffusion.
b. A protein will go through a channel protein that carries the protein inside the cell.
c. A Magnesium ion will pass through using charged channels.
d. A simple sugar will be carried by transmember proteins or transporters.
e. An invading bacterium will force its way into the cell by passive diffusion.
f. A lipid will be allowed to pass by lipid layers in the cell membrane.
Make/produce and secrete hormones