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Fofino [41]
3 years ago
15

15. How is the color of blood determined?

Biology
2 answers:
Feliz [49]3 years ago
8 0

Answer:

all blood is blue

Explanation:

Tamiku [17]3 years ago
8 0

Answer:

It is a common myth that veins are blue because they carry deoxygenated blood. Blood in the human body is red regardless of how oxygen-rich it is, but the shade of red may vary. The level or amount of oxygen in the blood determines the hue of red. As blood leaves the heart and is oxygen-rich, it is bright red.

Explanation:

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Research and identify a vestigial structure of an organism of your choosing.
Mariana [72]

Answer:

The one of best example would be appendix in humans.

Explanation:

In the past, the appendix may have helped in the digestion of the plants by producing mucus and prevent any type of infection. Plants with a high content of cellulose are digested with the help of the appendix as reported.

It is not a part of the human digestive system and considers as a vestigial organ. Vestigial organs are the organs that are present in an organism with no particular function and their removal will not lead to any harm. Humans do not need it because our digestive system is more efficient and works better in the first stages of digestion than they used to.

Thus, the correct answer is - appendix in humans.

6 0
3 years ago
Bio20 definition help needed !!
Nastasia [14]

Answer:

C

Explanation:

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What happened when John Travoltage touched the door knob after rubbing his foot on the carpet?
Sholpan [36]

he was shocked by the static electricity he had accumulated.

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3 years ago
If a Pacemaker is not placed in a patient, what does the heart do to compensate for that loss?
Soloha48 [4]

Answer:

When something goes wrong with the sinoatrial node, you may develop a consistently slow heartbeat (sinus bradycardia) or the normal pacemaker activity may stop entirely (sinus arrest). If sinus arrest occurs, usually another area of the heart takes over pacemaker activity. This area is called an escape pacemaker.

Explanation:

Happy to assist! If you have any questions or comments, plz comment in the boxes below! Have a wonderful day!!!!!!

                   -Mackie

3 0
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Cells that are striated are found in _____.
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D) Connective tissue. Skeletal muscle Striated muscle. It is under the person's voluntary control
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