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Natasha_Volkova [10]
3 years ago
6

The different ways pulse rate can be used to measure fitness?

Biology
1 answer:
Stels [109]3 years ago
4 0
A normal heart rate ranges between 60-100 beats per minute. The higher the heart rate is, the faster the blood is pumping through the heart. When exercising a persons heart will be higher because the brain and the muscles in the body are in need of oxygen so the heart needs to pump faster in order to sustain optimal performance.<span />
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Students in a science class were asked to investigate how missing or damaged organelles affect cellular homeostasis for cells fo
lora16 [44]

Answer:

B. At what rate do the mitochondria of the cell need to convert glucose to usable energy molecules to meet the high energy needs of the cell?

Explanation:

Organelles are specific in their functioning and hence, each organelle contributes its own quota to the cell's proper functioning. According to the question, a muscle tissue is being worked on to determine the effect of a missing or damaged organelle on its cell.

Mitochondria are organelles found in all eukaryotic living cells. They are the organelles responsible for the synthesis of ATP (energy) used by the cell as a result of the glucose that gets converted in them during cellular respiration.

Therefore, to determine if the muscle cells are functioning properly, the question that: At what rate do the mitochondria of the cell need to convert glucose to usable energy molecules to meet the high energy needs of the cell? should be asked.

Note that, Chloroplast and cell wall are not found in muscle cells, which is an animal cell. Likewise, ribosomes are not organelles for synthesis of glucose.

3 0
2 years ago
An evil scientist’s evil lab assistant shoots you with a laser beam that erases all of the RNA in your cells, and removes your c
WINSTONCH [101]

Answer:

That scrape on our knee will never heal and the blood loss due to bleeding will never be replaced. This is because RNA is inside of cells and without the ability to create new RNA you cannot replace missing cells. So the scrape will never heal if your cells cannot create new RNA.

Explanation:

hope this helps. . . <3

6 0
2 years ago
How are fruits and vegetables made available in the off season
Aneli [31]

Answer:

They can preserve food in the cans, in the refrigerator and make them frozen, in the green houses to preserve them in the off season.

This is all how you can preserve food in the off season.

<h3>Hope this helps.</h3><h3>Good luck ✅.</h3>
6 0
1 year ago
explain the differences between normal air circulation and how the air behaves when a temperature inversion occurs
dybincka [34]

Temperature inversion or thermal inversion is a phenomenon during which the temperature increase when there is an increase in the altitude. It is an uncommon process that happens in the troposphere-the layer of atmosphere closest to the earth.    

When there is an increase in temperature with altitude, that warm air acts as a blockage for the cool air near the surface of the earth. So this is just opposite to the normal behavior of the air, where it becomes cooler with an increase in altitude.

So how air circulation behaves during inversion?

So as we said that the cool air nearer to the earth will be blocked by a layer of warm air. This blockage will hinder the circulation of air upwards from the lower layers. Let’s see how:

• As we know that, warm air is less dense and more buyout than cool air and normally less dense warm air is close to the earth and cool air is in above layers. But when the process is reversed, this warm air acts like a blanket for the proper circulation of air. Due to this, many environmental pollutants which normally leave the earth during air circulation get trapped in our air.  

• The trapped environmental pollutants like nitrogen oxides and hydrocarbons get convert into harmful ozone that ultimately deteriorates the quality of air and causes problems like smog.

• The improper air circulation also causes suspension of the harmful gases near the earth instead of allowing them to leave the earth atmosphere. This ultimately causes air pollution.  

• When smoke will not rise, carbon dioxide will be build up in the atmosphere; this will cause greenhouse effect and global warming.

Therefore, air circulation behaves very different during temperature inversion process and poses hazardous effects on global climate.

Hope it helps! :)

4 0
3 years ago
Any condition in an experiment that can be changed?
Lisa [10]
This is called your manipulated variable or independent variable. If graphing, make sure to plot these points using you x-axis.
8 0
3 years ago
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