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n200080 [17]
3 years ago
13

Why will a cradle run forever in vacuum?

Biology
1 answer:
scoundrel [369]3 years ago
3 0

At least, that's how it would work in an "ideal" Newton's cradle, which is to say, one in an environment where only energy, momentum and gravity are acting on the balls, all the collisions are perfectly elastic, and the construction of the cradle is perfect. In that situation, the balls would continue to swing forever.

plz mark me as brainliest if this helped :)

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What is the major monosaccharide found in the body?
kipiarov [429]
The answer for this is Glucose
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Consider a population of finches originally observed on one of the Galapagos Islands about fifty years ago. At the time, it was
Alex787 [66]

Answer: anagenesis

Explanation:

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hope this helps : ))

8 0
2 years ago
During the process of digestion, large food molecules are broken down into small components that can be absorbed into cells that
Alona [7]

1. During the process of digestion, large food molecules are broken down into small components that can be absorbed into cells that form the lining of the small intestine.  Digestion begins in mouth, where large food molecules are broken down mechanically (teeth) and then enzymatically (saliva). Proteases, lipases, amylases, maltases are enzymes that  catalyse the breakdown of macromelocules into the basic molecule units (such as aminoacids, fatty acids glucose) so that they can be absorbed.

2. Circular folds, villi, and microvilli--tiny projections from the surfaces of cells--increase the surface area for absorption.  Those structures can increase the surface area even 30 times. The microvilli also secrete the enzymes which help in the process of breakage. Motor proteins in the microvilli makes them move and this also helps in the process of absorption.

3. After moving into cells of the intestinal lining, fatty acids and glycerol are recombined into fats, coated with proteins, and transported into lymph vessels, which eventually empty into large veins.  These lymphatic vessels are called lacteals. Fatty acids are transported from the intestinal lumen to the enterocyte where they are packed into chylomicrons (combined with proteins). The chylomicrons pass into the lacteals in the form of chyle and finally transported to the bloodstream.

4. Sugars and amino acids pass from the intestinal epithelium and into blood capillaries.  This is a two-stage process:

•  from the lumen into intestinal epithelial cells via membrane transporters (Na-symporters)

• from the cells into the blood (capillaries)

This is possible because epithelial cells of the intestine are polarized, meaning that apical and basolateral ends are different (contain different transporters).

5. The nutrient-laden blood from the intestines is carried in hepatic portal vein the to the liver.  There is a whole system involved in the transport of  blood from parts of the gastrointestinal tract to the liver and it is called the portal venous system. The hepatic portal vein is a blood vessel part of that system that carries blood rich in nutrients extracted from digested contents.

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7. The liver also converts nutrients to other essential substances, such as plasma proteins, cholesterol, and fats. The liver is responsible for many synthesis processes (anabolic processes) such as synthesis of proteins (aminoacids), clotting factors, cholesterol, lypoproteins. It is involved in lipid metabolism: lipogenesis, and the production of triglycerides. One of the most important proteins synthesized in the liver are thrombopoietin which regulates the production of platelets by the bone marrow and insulin-like growth factor 1 which  plays an important role in childhood growth.


3 0
3 years ago
A patient is admitted to the hospital with blood clots despite taking her anti-coagulation medication. During your assessment, y
Whitepunk [10]

The supplement being taken is Vitamin K in this type of scenario.

<h3>What is Vitamin K?</h3>

This is a type of vitamin which is responsible for the clotting of blood and healing of injuries in the body.

This is achieved by coagulation of the blood to stop bleeding however since the patient has blood clots and takes anti-coagulation medication it is best to avoid vitamin K.

Read more about Vitamin K here brainly.com/question/4053919

#SPJ1

8 0
2 years ago
Who is responsible for determining the structure of the dna molecule
Dennis_Churaev [7]

Answer: James Watson and Francis Crick

Explanation:

In 1953 James Watson and Francis Crick are responsible for determining the structure of DNA. James and Watson proposed that the DNA is made up of a double polynucleotide chains that are twisted around each other to forming a helical structure. The two DNA chains runs anti-parallel in opposite direction to each other. Like the structure of the ladder.

The answer is James Watson and Francis Crick

8 0
2 years ago
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