Biology, 30.01.2020 01:51 29delphina
Describe a process in the human body in which there is evidence of the cell cycle at work.
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Biology, 22.06.2019 10:50
Which type of transport is responsible for oxygen entering into blood cells? a. vesicle b.passive c. facilitated d.active b.passive
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Biology, 22.06.2019 13:30
How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?
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Biology, 22.06.2019 19:30
On a backpacking trip, kenny hikes all day at a steady pace, covering 30 kilometers and burning 4000 calories. at the school track, janelle runs the 100-meter sprint in 13.5 seconds, burning 10 calories. afterward, janelle’s leg muscles are aching and she is breathing hard, while kenny maintains normal breathing all day, even though he burns 400 times more calories than janelle. which two statements offer the best explanation for this phenomenon? a. if the aerobic pathway—cellular respiration—cannot meet the energy demand, then the anaerobic pathway—lactic acid fermentation—starts up, resulting in lactic acid buildup and "oxygen debt." b. aerobic cellular respiration produces more energy, but its use is limited because of lactic acid buildup in the muscles and the resulting "oxygen debt." c. after about 90 seconds of intense exercise, the muscles become depleted of oxygen, and anaerobic respiration can no longer function to produce atp, resulting in "oxygen debt." d. the rate of energy demand determines how the muscles will obtain energy, either from cellular respiration or from lactic acid fermentation if not enough oxygen is present.
Answers: 3
Biology, 23.06.2019 00:00
Plants contain the carbohydrates starch and cellulose.in the spring when stem growth is at its fastest rate, cellulose production rates are increased in some plants. in the months with less sunlight
Answers: 2
Describe a process in the human body in which there is evidence of the cell cycle at work....
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