Select all the correct answers. Which two body systems interact to expel the waste product carbon dioxide?

1) urinary system
2) nervous system
3) excretory system
4) circulatory system

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.

What factors contribute to the effect an environmental toxin has on the human body?