George is running a 5-km race and his cells need more oxygen. which change will his body meet the increased demand for oxygen?
a. his heart beating more quickly.
b. his breathing becoming more shallow.
c. his pancreas releasing more insulin..
d. his sweat glands becoming more active

Select all that apply. which of the following are functions of the skeletal system? 1. to provide the body with a strong and mobile framework 2. to allow the body to move 3. to protect internal organs from sunlight, bacteria, and injury 4. to supply the body with blood cells and minerals

Avoiding excess salt and sodium may benefit a person’s health by

Is the process by which biological parents pass traits such as hair type or eye color to their children. these traits may affect their well-being and health.