Which of the following is the best example of circadian rhythm? High altitudes increase the amount of red blood cells produced in the body.
Lab mice kept in constant darkness show a daily pattern of behavior.
Large cats, like lions and tigers, sleep more than 18 hours a day.
Some birds can sense changes in Earth's magnetic field.

Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation

Which statement best describes lactic acid fermentation? a. lactic acid fermentation is the first step of cellular respiration. o b. lactic acid fermentation is the final step of cellular respiration. re to berate c. in the absence of oxygen, cells release atp by breaking down lactose into glucose. e der lade res o d. in the absence of oxygen, cells release atp by breaking down glucose into lactate. ar

Which process of living things produces water that enters the water cycle