How are salmon and lampreys different?

Salmon have a jaw.
Lampreys have scales.
Salmon have a cartilaginous skeleton.
Lampreys have a swim bladder.

sorry, but you do not have posted the diagram.

genetic variation will increase because of a new habitat and food source.

explanation:

well, since there is no answer choices, i will give an answer on how it works : )

the two objects are placed together. energy will always be transferred from the hotter object to the cooler object until they are equal. hope this is close to one of the answer choices : )