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laiz [17]
3 years ago
6

The spinal cord is an ____ extending from the medulla of the brain down to the middle of the back

Biology
1 answer:
Bad White [126]3 years ago
7 0
Long thin tubular bundle of nervous tissue and support cells
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Stimulation of ________ receptors in the uterus causes uterine relaxation and suppression of the preterm labor.
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Hey there!

I believe answer is B2 or Beta 2
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3 years ago
What are the similarities and differences between carrier proteins and channel proteins​
kvv77 [185]
* Channel proteins- these are proteins with a hydrophilic pore where specific ions are able to pass through the membrane. Each channel protein is specific to an ion. This is the only way ions can travel through the membrane. They are trans membrane proteins.

* Carrier proteins- these are proteins which allow larger or polar molecules through the membrane. They are trans membrane proteins.

Carrier proteins essentially “carry" signals that are not soluble in aqueous solution through the blood stream to their target cells. Carrier proteins for hydrophilic signals prevent degradation of the signal. Channel proteins are embedded in cell membranes. They often are receptors (though not always), and when activated, allow specific ions to pass through the membrane.

A channel protein is a special arrangement of amino acids which embeds in the cell membrane, providing a hydrophilic passageway for water and small, polar ions. Like all transport proteins, each channel protein has a size and shape which excludes all but the most specific molecules

The carrier protein facilitate diffusion of molecules across the cell membrane. The protein is imbedded in the cell membrane and covers the entire membrane. This is important because the carrier must transport the molecule in and out of the cell.
3 0
3 years ago
2. Describe the role of the following in maintaining a constant body temperature in humans:
Alex_Xolod [135]

Answer:

Muscles can also receive messages from the brain when the body temperature decreases. They respond by shivering. Shivering causes the muscles to contract and relax quickly. This process generates heat.

6 0
2 years ago
You notice that a group of students went on a hiking trip to Cockscomb basin. They are asked to climb a hill, by the time they r
ankoles [38]

Answer:

It depends on the stamina of the individual.

Explanation:

The possible explanation for the differences in breathing rate is related to the daily activities of the individuals. For example, if the daily activities of the people are hard so it has big stamina and experience no difficulty in the climbing of a hill while those people who has little hard daily activities have low stamina and their breathing rates increases while climbing a hill. Where as those people who perform no daily activities have no stamina and will be unable to climb on the hill.

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3 years ago
If u compared an animal cell to a city, the mitchondra would be similar to the
Nitella [24]
The answer is D. Since mitchondra is the energy source for the cell, it provides energy. Be sure to reread the lesson. Hope this helped!
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3 years ago
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