True. The arrows on a motion map must be connected to the dots on a motion map.
<u>Explanation:</u>
A motion map represents the movement of an object. The dots used in a motion map represent the position of an object and its displacement is represented by arrows. The dots come at the tail end of the arrows.
The direction of the arrows denotes the direction of displacement vector of the object. Thus reversing the direction of the object reverses the direction of arrows in a motion map. The length of the arrow represents the magnitude of the velocity vector which is the speed of the object.
Mark the pink dot with “phosphate group”
mark the blue one with “nitrogen bases”
Answer:
Dorsal lol, its contracts and pumps blood to the aortic arches.
