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Sonbull [250]
3 years ago
9

Blood enters which of these vessels during ventricular systole?

Biology
1 answer:
Ganezh [65]3 years ago
5 0
Ventricular systole is when the ventricles of the heart as the result of electrical activity which helps to pump blood. During ventricular systole oxygenated blood is pumped from the left ventricle through the aortic valve and aorta. Simultaneously deoxygenated blood is pumped from the right ventricle through the pulmonic valve and pulmonary artery to the lungs. Using this explanation blood enters  the aorta and pulmonary artery during ventricular systole. <span />
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quizlet chromosomes are composed of: please choose the correct answer from the following choices, and then select the submit ans
Anna11 [10]

Chromosomes are composed of deoxyribonucleic acid (DNA) mole

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These are ribonucleic acid(RNA) and deoxyribonucleic acid(DNA).

The organisms having DNA as genetic material require packaging of DNA as it is a long polymer of deoxyribonucleotides.

In the case of human beings, the length of DNA in a cell is approximately 2.2 meters which is very large as compared to the size of the nucleus( approximately 10^-6 meters).

So, the DNA has to be made compact for it to be present inside the nucleus of a cell.

Therefore, the DNA present inside the nucleus of a cell undergoes coiling and compaction through several stages before finally becoming a chromosome, which is shown in the adjoining diagram.

Thus, chromosomes are composed of deoxyribonucleic acid (DNA) molecules.

To know more about "DNA Packaging", refer to the following link:

brainly.com/question/14702559?referrer=searchResults

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4 0
2 years ago
Select the item that is NOT a common pathogen. 1.) Salmonella 2.) Typhoonosis 3.) Staphylococcus aureus 4.) Listeria
Aleksandr-060686 [28]
2) Typhoonosis.

Here's why:
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3) Staphylococcus Aureus-It's a pathogen.

4)Listeria-It's a pathogen.


I hope I helped! :)

8 0
3 years ago
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iragen [17]
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6 0
3 years ago
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ivann1987 [24]
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Glycolysis occurs in the mitochondria protoplasm cytoplasm of the cell.
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Hope this helps
8 0
3 years ago
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