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Inessa05 [86]
2 years ago
9

Explain the effect of activity on a heart rate​

Biology
2 answers:
WITCHER [35]2 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]2 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:

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Diagrams,tables,and graphs are used by scientists mainly to
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Since most of the data scientist collect is quantitative, data tables and charts are usually used to organize the information • Graphs are created from data tables • They allow the investigator to get a visual image of the observations, which simplifies interpretation and drawing conclusions • Valid conclusions depend ...

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3 years ago
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When sodium enters the neuron via chemically gated sodium channels, the membrane will depolarize. therefore, the membrane potent
Korvikt [17]
........... the membrane potential will become more POSITIVE.
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8 0
3 years ago
In phase-contrast microscopy, the differences in refractive indices between organisms and their environments are utilized for be
mina [271]

Answer:

True

Explanation:

In  phase-contrast objective and a phase contrast optical systems is equipped with Light microscope  .

Phase contrast microscope is used to differentiate unstained structures in a cell  that differ in refractive indices and thickness. Thus it is usefull for examining  living unstained organisms.

Light that passed through materials of different refractive index and/or thickness will undergo a change in Phase. The difference in phase or wave front irregularities cause variation in brightness of the structures.

Hoping this might help!!!

7 0
2 years ago
One unit of alcohol contains 8 grams of alcohol. calculate the risk of developing liver cancer for someone who consumes 4 units
Kryger [21]

The risk of developing liver cancer for someone who consumes 4 units of alcohol a day is twice as high as normal (hepatocellular carcinoma and intrahepatic cholangiocarcinoma).

<h3>What does alcohol do to the liver?</h3>

Alters the production of enzymes, changing the rate of metabolism of the alcohol consumed, causing chronic inflammation, alcoholic hepatitis and cirrhosis.  Irritates the mucous membranes of the stomach and esophagus, causing esophagitis, gastritis and diarrhea.

With this information, we can conclude that The risk of developing liver cancer for someone who consumes 4 units of alcohol a day is twice as high as normal (hepatocellular carcinoma and intrahepatic cholangiocarcinoma).

Learn more about liver cancer in brainly.com/question/22628607

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7 0
2 years ago
What are the two benefits of using Punnett Squares?
harina [27]

Explanation:

They are useful as they can predict the genetic probability of a particular phenotype arising in a couple's offspring. In other words, it can tell you if you will or will not have a certain trait.

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2 years ago
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