What type of circulation is described as the movement of blood from the heart to the lungs and back to the heart again?
a. portal
b. pulmonary
c. renal
d. systemic

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

According to your text, should be in the native language of the parents or guardians whenever possible. a. an email b. consent forms c. oral approval d. storybooks loaned out

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.