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lara [203]
2 years ago
5

4 Which muscles are actively involved in normal breathing?

Biology
2 answers:
Pavel [41]2 years ago
6 0
The lungs have no skeletal muscles of their own. The work of breathing is done by the diaphragm, the muscles between the ribs (intercostal muscles), the muscles in the neck, and the abdominal muscles.
SVEN [57.7K]2 years ago
3 0

Answer:

The main muscles are the diaphragm and intercostal muscles, but the muscles in the neck and the abdominal muscles also help.

Explanation:

The diaphragm is the muscle under the lungs that helps move the lungs while the intercostal muscles are the muscles in between the ribs.

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Which is a difference between the Paleozoic and Mesozoic era?
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Explanation:

Animals lived in the water during the Mesozoic and on land in the Paleozoic. Animal complexity increased during the Paleozoic while the first flowering plants appeared in the Mesozoic era. ...

The Paleozoic era, not the Mesozoic era, had the first dinosaurs. The first mammals emerged in the Paleozoic era, not the Mesozoic era. The Mesozoic era, not the Paleozoic era, had the first animals with shells.

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3 years ago
What is the basic formula for monosaccharides and how is the shape determined?
Andrews [41]

Answer:

Monosaccharides are simple sugars with a basic formula Cⁿ (H2O)ⁿ. They are classified according to the number of carbon atoms they contain: tetroses (4), pentoses (5) and hexoses (6). There are also mosaccharides with 3 carbon atoms, for example the Dihydroxyacetone.

Explanation:

Monosaccharides have to be aldehydes (-CHO) or ketones (-COO) with more than one alcohol function, which will be located in different carbons.

5 0
3 years ago
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Tems11 [23]

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I don't know I'm sorry I will tell you another answer asks me

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3 years ago
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3 years ago
Which directional terms best describe the location of the sternum in relation to the vertebral column? in the axial region of th
liraira [26]

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In anatomical terminology there are several words to indicate the position or part of the body that is being mentioned in a more specific and precise way, a group of these terms are called directional terms, they focus on the position of a specific part, one of the words in this group is "anterior" it basically means "in front of". The sternum is in front of the vertebral column.

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