Genetics, botany, and zoology are all parts of what subjects?

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.

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f

Why do mountaineers become breathless as they reach high altitudes