In salt water fish, chloride cells in the gills: a. passively transport Cl- from the ECF to the external environment. b. actively transport Cl- from the external environment to the ECF. c. actively transport Cl- from the plasma to the ECF. d. actively transport Cl- from the ECF to the external environment.

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.

Give examples of selective advantage of organism’s body part/organ

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.