Question

other systems interact with the digestive system to maintain homeostasis. one system moves food through the digestive system so that it can be broken down into nutrients through mechanical digestion. another system then delivers those nutrients from the digestive system to the rest of the body. select the two which are responsible for these interactions.
cardiovascular
muscular
immune
nervous

Explanation:

To solve this, we analyze the roles of each system:

1. Cardiovascular System: Transports nutrients (from digestion) to cells. This matches the "delivers nutrients" role.
2. Muscular System: Aids in mechanical digestion (e.g., chewing, stomach churning) to break down food, matching the "moves food" and "mechanical digestion" role.
3. Immune System: Focuses on defense, not nutrient transport/digestion movement.
4. Nervous System: Coordinates, but not primary in nutrient transport or mechanical digestion for this context.

So the two systems are Cardiovascular (transports nutrients) and Muscular (aids mechanical digestion).

Answer:

Cardiovascular, Muscular