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3 years ago

Explain how the organ systems work together to warm up the body on a cold day

Computers and Technology

2 answers:

Tatiana [17]3 years ago

6 0

Answer:

Your body is to cold ,blood vessels in the skin contract , and blood flow to the extremities (arms and legs)slows . muscles contract and relax rapidly which generates heat to keep you warm..

Explanation:

Hope this helps :)

OLEGan [10]3 years ago

6 0

Answer:

Sample Response: The brain, through the nervous system, sends signals to the muscular system, causing the muscles to move rapidly. This rapid motion produces heat in the body and is observed as shivering. The brain also sends signals to the muscles right beneath the skin. These muscles shorten and tighten, causing the hairs on the skin to stand up. When the hairs stand up, heat is kept in the air trapped within the hairs, which keeps the body warm.

Explanation:

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What were the technological innovations that allowed for the rapid expansion of the railroads?

liraira [26]

Answer:

There are different phases of railroad expansion with the innovations in technology.

Explanation:

Few of the technological innovations are described below that leads in railroad expansion more rapid.

1. Centralized Traffic control (CTC) is introduced in 1960's that is used to control the traffic on railroads using different signal control.

2. In 1990's after computer technology involvement, railway ticket and reservation system is automate and being centralized. That makes the railroad expansion improve.

3. Bullet train technology has been introduced, that makes the railway trains more faster.

4. Electric trains has been introduced to use green energy and reduce the dependency on the fuel to make environment clean and green.

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2 years ago

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lana [24]

Answer:

True

Explanation:

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2 years ago

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densk [106]

Answer:

Get to the point at the beginning of the memo.

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Explanation:

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2 years ago

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dimulka [17.4K]

Answer:

True

Explanation:

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1 year ago

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dexar [7]

Answer:

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Explanation:

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2 years ago