Biology, 04.07.2019 22:30 kaziyahf2006
Which of the following appeared before the first cells evolved
Answers: 1
Biology, 22.06.2019 11:00
Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water
Answers: 1
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, 22.06.2019 23:30
Why is hemophilia more common in males than in females? a.hemophilia is more common in females b.affected males only need to inherit one copy of the allele c.hemophilia affects only males
Answers: 2
Which of the following appeared before the first cells evolved...
Biology, 27.05.2021 21:40
Mathematics, 27.05.2021 21:40
Social Studies, 27.05.2021 21:40
Mathematics, 27.05.2021 21:40
Social Studies, 27.05.2021 21:40
English, 27.05.2021 21:40
Mathematics, 27.05.2021 21:40
Mathematics, 27.05.2021 21:40
Mathematics, 27.05.2021 21:40