Why are head and spine injuries much more serious than muscle strain or hematomas? a. head and spine injuries can result in permanent disabilities. b. muscle strain can result in long-term health problems. c. spine injuries are generally quick to recover from. d. they require moving the athlete off the playing field immediately.

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

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.

Which of the following locations would most likely have the most wind erosion?