(A) nerve cords, because adults lack a notochord (a dorsal hollow nerve cord).
Answer:
Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.
Explanation:
hope it helps but i can tell your in 5th grade <3
Answer:
(A) temporary allergy to milk products has developed