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Inessa05 [86]
3 years ago
9

Explain the effect of activity on a heart rate​

Biology
2 answers:
WITCHER [35]3 years ago
5 0

Answer:

Pretty much the more activity you do, or the more intense it is, the faster your heartrate will be. Your heart needs blood, and when you're exercising the blood is pumping through your body faster.

Explanation:

Leni [432]3 years ago
3 0

Answer: Exercise causes the heart to pump blood into the circulation more efficiently as a result of more forceful and efficient myocardial contractions, increased perfusion of tissues and organs with blood, and increased oxygen delivery. Aerobic exercise trains the heart to become more efficient.

Explanation:

PLEASE MARK ME AS BRAINLIEST

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Mention four ways to keep your environment clean​
leva [86]

Answer:

Recycle, Drive your car less, Save water, and Save Electricity

Explanation:

8 0
3 years ago
Which correctly describes crossing over?
ollegr [7]

The correct option is A ie the process whereby non-sister chromatids exchange genetic material

  • Between prophase I and metaphase I, a process known as crossing over occurs in which two homologous non-sister chromatids join up and exchange various pieces of genetic material to create two recombinant chromosome sister chromatids.
  • When genetic material is switched between two chromosomes, this process is known as crossing over.
  • It is in charge of causing genetic variation among members of a species.
  • Only the reproductive cells known as gametes undergo this process.
  • The steps involved in crossing over are as follows:

1) Synapsis.

2) Chromosome duplication

3) Crossing over.

4) Terminalizataion.

Learn more about crossing over here :

brainly.com/question/20662534

#SPJ10

4 0
2 years ago
1. Describe the differences between radiation, conduction, and convection.
kkurt [141]

1. Radiation - energy transmits through particles that ionize. Conduction - heat is transferred through a substance without moving the material. Convection - transfer of heat through movement.

2. Earth receives energy from the sun, which is transferred between Earth and its atmosphere.

3.<span>Wildland fires, dust storms, and volcanic activity. They release CO2, CH4, N20, and sulfur dioxide.</span>

4. Burning coal, releases carbon dioxide and other pollutants. Gasoline, releases air pollution. Factories, releases carbon dioxide, methane, and nitrous oxide.

4 0
3 years ago
Read 2 more answers
The mass of chewed food that is swallowed is called
Tanya [424]
That would be called <span>Defecation.</span>
7 0
3 years ago
Read 2 more answers
Which image shows a cell that has a higher concentration of salutes inside 1
Bumek [7]
The correct answer is hypertonic
3 0
3 years ago
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