Question

1. how do the digestive, respiratory, and circulatory systems all support the process of cellular respiration?

Explanation:

The digestive system breaks down food into glucose. The respiratory system takes in oxygen. The circulatory system transports glucose and oxygen to cells. In cellular respiration, cells use glucose and oxygen to produce energy (ATP).

Answer:

The digestive system provides glucose (from food breakdown), the respiratory system provides oxygen, and the circulatory system transports these to cells for cellular respiration (where glucose and oxygen are used to make ATP - energy for the cell).