Answer:
Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement.
Explanation:
Sea animals and land animals? I don’t really knoe
You have the crust then you have mantle thenyou have the outer core then you have the inner core
The answer is A:
The SUGAR-PHOSPHATE CHAINS form the sides, and the BASE PAIRS form the rungs