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My name is Ann [436]
3 years ago
12

Factors affecting heart rate

Biology
1 answer:
Genrish500 [490]3 years ago
4 0
1) breathing
2) emotional stress
3) physical stress
4) vagal stimulation
5) medications
6) illness
7) diseased heart
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Which describes the partial pressures of systemic cells under resting conditions?
Irina18 [472]

The conditions which describe the partial pressures of systemic cells under resting conditions are:

  • Relatively constant partial pressure of gases
  • PCO₂ of 45mm Hg, and
  • PO₂ of 40mm Hg

<h3>What are systemic cells?</h3>

Systemic cells are cells of the body which receive oxygen from the capillaries during respiration and gaseous exchange.

The systemic cells receive oxygen-laden blood from the capillaries and transfer carbon dioxide into the blood capillaries.

The conditions which describe the partial pressures of gases of systemic cells under resting conditions are as follows:

  • Relatively constant partial pressure of gases
  • Partial pressure of carbon dioxide, PCO₂ of 45mm Hg, and
  • Partial pressure of oxygen, PO₂ of 40mm Hg

In conclusion, the partial pressure of the gases in systemic cells under resting conditions are fairly constant.

Learn more about partial pressure of oxygen and carbon dioxide at: brainly.com/question/14679014

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4 0
2 years ago
The model shows a cellular process that occurs in every cell in eukaryotic organisms.
Whitepunk [10]

Answer:

The correct answer is - create polypeptide and eventually proteins for gene expression.

Explanation:

This model is representing the translation process in protein synthesis which takes place in the cytoplasm of the cell and results in forming proteins from the information carried by mRNA from DNA in a code. The translation is the process that translates the code, carried out by mRNA with help of ribosome and tRNA, into a chain of amino acids called polypeptide chain that forms eventually in protein.

1. mRNA strand and ribosome present of ER translate codes into a protein.

2. Amino acids are transferred by the tRNA molecules to the ribosomes.

3. mRNA and tRNA bases are paired and amino acids are left behind to create polypeptide.

4 0
3 years ago
Can exposure to electromagnetic fields cause leukemia
inna [77]

Answer:

It is not generally known to be a cause of leukemia

Explanation:

Yes, scientists have found a link between EMF and leukemia, but they have not found actual evidence of electromagnetic fields being a huge risk factor of leukemia.

7 0
3 years ago
What happens when we know about other living beings ?<br> Please I need it soon
Tems11 [23]

Answer:

In order for something to be classified as living, it must grow and develop, use energy, reproduce, be made of cells, respond to its environment, and adapt. While many things meet one or more of these criteria, a living thing must meet all of the criteria.

6 0
3 years ago
The heart, esophagus, trachea, and bronchi are all located in a portion of the body called the __________.
swat32

They are all located in the body’s portion in which is in the mediastinum. This is the central compartment that is being surrounded by loose connective tissue in the cavity of thoracic in which these organs are found such as the heart, esophagus and trachea.

8 0
4 years ago
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