Biology, 18.05.2021 19:50 tylersabin72
A marathoner's leg muscles often feel heavy and prone to cramping after 20 or more
miles. Which of the following is the best explanation for this?
O A marathoner's circulatory and respiratory system cannot take in sufficient oxygen, and the
muscle cells must switch to anaerobic respiration for energy.
O A marathoner's muscle cells contract when glucose reacts with oxygen.
O A marathoner's circulatory system takes in too much oxygen during a race, which causes
muscle cramping.
O A marathoner's muscle cells cannot store glucose for use as energy.
Answers: 2
Biology, 22.06.2019 10:00
Vessels draining the myocardium of the heart, open primarily ,into which chamber?
Answers: 2
Biology, 22.06.2019 10:30
Which of the following terms best matches this definition: the process where humans choose the traits that will be present in the next generation through breeding. question 4 options: genetic determinism artificial selection acquired selection natural selection
Answers: 2
Biology, 22.06.2019 13:10
Which of the following is caused by reproductive isolation within a species? a. a decrease in gene flow b. an increase in genetic flow c. a decrease in genetic drift d. an increase in gene flow
Answers: 2
A marathoner's leg muscles often feel heavy and prone to cramping after 20 or more
miles. Which of...
Mathematics, 09.04.2020 18:54
Biology, 09.04.2020 18:54
Geography, 09.04.2020 18:54
Mathematics, 09.04.2020 18:54
Mathematics, 09.04.2020 18:54
English, 09.04.2020 18:54
Biology, 09.04.2020 18:54
Biology, 09.04.2020 18:54
Mathematics, 09.04.2020 18:54
Mathematics, 09.04.2020 18:54
History, 09.04.2020 18:54
English, 09.04.2020 18:54
Computers and Technology, 09.04.2020 18:54