Which of the following statement is true?
a. the nitrogen cycle is the most important cycle for life.
b. the oxygen cycle is the least important cycle for life.
c. life can be sustained without any of the cycles for life present.
d. all the cycles of the matter are equally important for life to be sustained

Which type of neuroglia is found outside of the brain?

Discuss the functions of epithelial connective nerviud and muscular tissues

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.