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Schach [20]
2 years ago
13

Please answer ! Best answers will be marked as brainliest and will be given thanks and 5 stars , Any unnecessary answer , will b

e deleted and will hack your points.

Biology
1 answer:
Elenna [48]2 years ago
5 0

Answer:

A. Northern tropic, equator, Southern tropic (I think Im not double sure)

<em><u></u></em>

<em><u>B. Because the sun's rays hit the earth's surface at a higher angle at the equator</u></em>

<em><u></u></em>

<em><u>C. If earth did not tilt and orbited in an upright position around the sun, there would be minor variations in temperatures and precipitation throughout each year as Earth moves slightly closer and farther away from the sun</u></em>

<em><u></u></em>

<em><u>D. </u></em>It is the right distance from the Sun, it is protected from harmful solar radiation by its magnetic field, it is kept warm by an insulating atmosphere, and <u><em>it has the right chemical ingredients for life,</em></u> including water and carbon.

<em><u></u></em>

<em><u></u></em>

Explanation: hope it helps love :)

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The three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart.

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In Anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.

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