Answer:
1. Large muscle group
2. Small muscle group
Step-by-step explanation:
The physical exercise is performed to increase the endurance and strength of the group of muscles but the selection of exercise for a group of muscles depends on various factors ensuring the safety of joints and the movement and activation of the desired group of muscles.
Considering the safety procedures the weight training exercise is first performed for the large muscles and then for the small muscles like shoulders before triceps, quadriceps before gastrocnemius.
Thus, Large muscle group and Small muscle group are correct.