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
What type of rock forms when magma cools?
zhuklara [117]
Cercel ben Türkçe biliyorum İngilizce ama ben de seni çok seviyorum seni çok teşekkür ederim canım ben Türkçe konuşuyorum o zaman sen daha açıklayıcı oldu teşekkür ederim canı
What type of rock forms when magma cools?
A. Limestone
B. Metamorphic
C. Sedimentary
D. Igneous
m
8 0
3 years ago
Read 2 more answers
Help me please thank you
Leto [7]

Hey ur answer should be A intelligence

7 0
3 years ago
The amount of time spend in the bathtub and the temperature of the bath water
lesya692 [45]
Hihi!

<span>In general the water should be kept around 100-105 degrees fahrenheit! You should only spend around 10 minutes in the bath at a time, long bathes and showers damage your skin and take out all the moisture in your skin as well!

I hope I helped!
-Loliarual</span>
5 0
3 years ago
I need help on this question.​
Alecsey [184]

Earth’s global temperature has changed greatly in the past hundreds of years. This is due to how much energy the planet is receiving from the sun and how it radiates back. Another cause is humans, due to deforestation, burning of fossil fuels, pollution, etc.

4 0
2 years ago
What happens when light strikes green plant pigments? Glucose is split in half. ATP becomes ADP. NADPH becomes NADP Electrons be
Zina [86]

Answer:

Electrons become excited.

Explanation:

Electrons in the chlorophyll get excited and pass on the energy to other electrons.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Fingerprints have developed
    5·2 answers
  • Which of the following statements lists the steps that occur in the Cell Cycle, in chronological order?
    14·2 answers
  • True or False: Most materials are absorbed into the bloodstream in the large intestine.
    8·2 answers
  • The breakdown of pyruvic acid in the presence of oxygen is called
    10·1 answer
  • How does the experiment contribute to our understanding of altruism in different creatures?
    12·1 answer
  • Competition, a type of symbiotic relationship, is where neither species benefits neither species benefits nor is harmed one spec
    7·1 answer
  • The vitamin required specifically in carbohydrate metabolism is _______________. folate riboflavin thiamin niacin
    9·1 answer
  • Human body Systems Interactions
    12·1 answer
  • Deoxygenate blood is collected within the right atrium. It must exit through the _____valve to enter the right ventricle.
    10·1 answer
  • Polysaccharides are composed of carbohydrate monomers called.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!