Answer:
limbs form the baby has fingers, hands,arms, feet and toes. they can now open and close their fists and mouth
The electrical impulse travels across the axon, and the myelin sheath helps to increase transmission speed.
Answer:
controlled experiments
Explanation:
Experiments in which all variables are identical except for one are called controlled experiments. This where an observer tests his hypothesis by looking on changes that were brought about by one variable. The results are always dependent on one adjusted variable.
