What body systems supply the muscle cells with glucose? Immune System
Digestive System
Nervous System
Integumentary System
Circulatory System
Endocrine System
Respiratory System
Renal System

What is the process of a new plant growing from its seed into a seedling? primary growth fertilization pollination germination

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems

The united states uses which source of energy to produce almost 40 percent of its electricity