1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Taya2010 [7]
3 years ago
15

George is running a 5-km race and his cells need more oxygen. Which change will help his body meet the increased demand for oxyg

en? A. His heart beating more quickly. B. His pancreas releasing more insulin. C. His breathing becoming more shallow. D. His sweat glands becoming more active.
Biology
2 answers:
Vinil7 [7]3 years ago
6 0
A. because the heart will pump more blood filled with oxygen to the muscles that need it most
dezoksy [38]3 years ago
3 0

Answer: A. His heart beating more quickly.

Explanation:

The physical activity like running increase the rate of heart beat and blood circulation in the body due to muscular activity. During running the body experiences the depletion of oxygen. Oxygen becomes the main requirement for cellular respiration during running. To meet the requirement of oxygen the heart pumps the blood faster so that the requirement in each cell get fulfilled through rapid blood circulation.

On the basis of the above explanation, A. His heart beating more quickly. is the correct option.

You might be interested in
WILL MARK BRAINLIEST
Svetlanka [38]
1. eye color is an inherited trait
2.photosybtheis by plants
3. either biome or habitat
4.XY
5.manyfactures new blood cells
6. large intensity and kidney
7.idk
6 0
3 years ago
Read 2 more answers
The enzyme responsible for ATP production?
vekshin1

The enzyme is synthase

5 0
3 years ago
Pre-Test
astra-53 [7]

Answer:

a.) units

Explanation:

just took the test and got it right

4 0
3 years ago
What is population?<br>​
gulaghasi [49]

Answer:

population is number of inhabitants in area or place

4 0
3 years ago
Read 2 more answers
What is the meaning of calories ​
stepan [7]

Answer: the amount of caloric intake a food has

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • All BUT one is an example of a invasive species. That is A) zebra mussels introduced into the Great Lake region from Russia that
    14·2 answers
  • Cells of the immune system are able to respond to the presence of invading organisms because they recognize the
    13·1 answer
  • Sperm are the only human cells to have _____.
    9·1 answer
  • A medical researcher experimented with the effects of calcium intake on the healing time of broken bones. People who had
    8·1 answer
  • Which of the following is not part of Earth's physical systems? *
    12·1 answer
  • Which of the following animals are ectothermic seagulls, bears, spiders or cows?
    13·1 answer
  • Choose 2 of the following cycles (carbon, phosphorus, nitrogen, water) and describe each stage of them thoroughly.
    5·1 answer
  • For each function listed below, name the associated structure: Function Structure Rigid cellular support __________________ Flex
    11·1 answer
  • 5. [1 mark]
    8·1 answer
  • Play‘s the steps for the formation of enzyme pepsin the pepisnogen in the correct order
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!