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snow_lady [41]
3 years ago
7

What is an Important chemical that contains Nitrogen which is vital for all living things

Biology
1 answer:
vlada-n [284]3 years ago
5 0

Answer:

Amino acids

Explanation:

Nitrogen is a major part of amino acids. Which are the building blocks of proteins and nucleic acids.

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Muscle tissues are characterized by the presence of elongated cells, often called ____________ , that can contract to create mov
PtichkaEL [24]

Answer:

1. Muscle Fibers

2. Bones

3. Joints

Explanation:

Muscle tissue is made of muscle fibers. The plasma membrane of a muscle fiber is called sarcolemma while its cytoplasm is known as sarcoplasm. Muscle cells are characterized by the presence of specialized endoplasmic reticulum which is called sarcoplasmic reticulum.

Muscle cells exhibit contractility and extensibility. The ability of muscle cells to shorten their length forcibly in response to a stimulus is their contractility. Muscle fibers have the ability to extend and shorten themselves.

Extension and contraction of muscle fibers are responsible for the movement of the human body and its parts.

Muscles are attached to bones via tendons which in turn are the fibrous connective tissues. Muscles are also part of our joints where they assist in the movement by pulling the bones as well as stabilize and strengthen the joints.

7 0
3 years ago
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What may have helped horses change over the last 40 million years? A) an increase in their height and weight B) the coming and g
melisa1 [442]

A change in their food, from trees to grass in the Great Plains.

5 0
3 years ago
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6. Intravenous (IV) solutions are usually _________ so as to prevent
Dmitrij [34]

Answer:

hii there

The correct answer is option ( B ) isotonic

Explanation:

Hope it helps

have a nice day :)

4 0
2 years ago
The primary "food"<br> produced by<br> photosynthesis is a<br> 6-carbon sugar called
xenn [34]

Answer:

The primary "food"  produced by  photosynthesis is a  6-carbon sugar called glucose.

Explanation:

Through photosynthesis, plants use the sunlight to create a sugar called glucose. The plants use this energy to create other substances, such as starch and cellulose. This gives them the nutrients and vitamins they need to grow.

Hope this helps! :)

3 0
2 years ago
Galactosemia can result from a deficiency of either galactokinase or UDP-glucose:galactose 1-phosphate uridylytransferase (trans
nadezda [96]

Answer:

b. A transferase deficiency will result in an accumulation of the toxic metabolite galactosse 1-phosphate.

c. A galactokinase deficiency will cause an accumulation of galactose.

Explanation:

Transferase is an enzyme which is responsible for the breakdown of galactose which is a known milk sugar. Its deficiency causes the formation of toxic materials such as galactose-1-phosphate which comes from galactose, and galactitol. Galactokinase is also an enzyme which helps in the conversion of galactose into galactose 1-phosphate with the expenditure of ATP molecule, so its deficiency causes the deposition of galactose.

6 0
3 years ago
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