Question

which internal system is responsible for transporting oxygen and nutrients through an animals body? (1 point)
central nervous system
digestive system
respiratory system
circulatory system

Explanation:

The central nervous system is for processing information. The digestive system breaks down food. The respiratory system deals with gas exchange (taking in oxygen, releasing CO₂) but not transporting nutrients/oxygen throughout the body. The circulatory system (like the cardiovascular system) uses blood to transport oxygen, nutrients, hormones, etc., to cells and remove wastes. So the circulatory system is responsible for transporting oxygen and nutrients.

Answer:

circulatory system