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Lesechka [4]
3 years ago
9

Are the functions of the limbs of each of the animals illustrated the same or different?

Biology
1 answer:
Marat540 [252]3 years ago
8 0
Same

<span>Homologous structures refer to structures that have similar characteristics in terms of morphology, anatomy, genetics, and embryology yet still different when their functions are concerned. On the other hand, analogous structures are those organisms that have similar lifestyle because they live in the same habitat yet they belong in different groups.</span>
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B

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The thoracic cavity contains the ________. It is found ________ to the vertebral cavity.
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Answer: The thoracic cavity contains the heart, lungs and many of the main vessels of the circulatory system. It is found anterior to the vertebral cavity.

Explanation:

The thoracic cavity is the second largest hollow space of the body and it is the space limited by the ribs, the vertebral column, and the sternum. It is the upper region of the body starting from the neck and ending where the diaphragm ends. So, it is separated from the abdominal cavity by the diaphragm. It contains 12 ribs, and 7 of them attach directly to the sternum, 3 attach to the sternum via cartilages and 2 do not attach to the sternum at all and are called floating ribs. The cavity contains several organs, such as the lungs, heart, great vessels and esophagus.

The abdominal cavity spaces around the organs are filled with the core muscles that attach to the posterior spine. Besides. the ribs vertically, horizontally and across the abdominal region.

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<u>The thoracic cavity is anterior to the vertebral cavity, because anterior describes the front or direction toward the front of the body</u>.

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Which of the following is a non-contact force?
slavikrds [6]
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Magnetic force is a non-contact force.
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No muscle contraction will be observed.

<h3>What is the effect of calcium concentration on muscle contraction?</h3>

The concentration of calcium ions in the muscle cells help in contraction and relaxation of muscles fibers.

Release of calcium ions initiate muscle contraction.

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Learn more about muscle contraction and calcium ions at: brainly.com/question/14760686

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The answer is True to this question

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