Brittany wants to use a model to study soil erosion on hills. she is told that farmers can prevent soil erosion by plowing so that their furrows run along hills instead of up or down hills. she fills a pan with dirt, packs the dirt firmly, then shapes it into parallel furrows. what should brittany do with her pan of dirt next in order to study soil erosion? a. prop up one end of it to make a slope and carefully pour water over it b. shake the pan rapidly back and forth c. set it outside and check on it every day d. fill the pan with water, then tilt it until all the water runs out

A. Prop up one end of it to make a slope and carefully pour water over it.

Explanation:

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.