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navik [9.2K]
3 years ago
12

Why can an old man not see Clearly​

Biology
2 answers:
melomori [17]3 years ago
7 0
The most common causes of vision loss among the elderly are age-related macular degeneration, glaucoma, cataract and diabetic retinopathy. Age-related macular degeneration is characterized by the loss of central vision. Primary open-angle glaucoma results in optic nerve damage and visual field loss
Ratling [72]3 years ago
5 0

Answer:

due to ageing the physical senses and properties like eye's power become weak and slowly it starts to work weak in old people.

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Chymotrypsin is used for:__________
8_murik_8 [283]

Chymotrypsin is used for polypeptide cleavage on the C side of Trp, Tyr or Phe.

<h3>What is Chymotrypsin?</h3>

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Since the 1960s, chymotrypsin has been used in clinical settings as an oral proteolytic enzyme preparation. In comparison to a few other enzyme preparations currently on the market, it offers better inflammatory symptom relief and supports a quicker recovery from acute tissue injury.

The inactive monomeric protein chymotrypsinogen, which is produced and secreted by mammalian pancreas, is broken down into chymotrypsin by cleavage of several peptide bonds. As a result, three different polypeptide chains that make up the active enzyme were created.

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5 0
2 years ago
When the temperature on Earth drops abruptly, the land cools down faster than the sea.
alex41 [277]

Answer: density

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8 0
3 years ago
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To introduce a particular piece of DNA into an animal cell, such as that of a mouse, you would find more probable success with w
Lesechka [4]

The correct answer is option B, that is, electroporation succeeded by recombination.  

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The transfected DNA can get recombined or incorporated into the host genome or can remain in its own composition. Thus, the process of electroporation straightforwardly permits more recombination to take place.  


4 0
4 years ago
Which change would most likely occur if this rock became buried deep within Earth’s crust and was subjected to intense heat and
vitfil [10]
Does you question have the following choices?

A) The density of the pebbles and sand would decrease.

B) The rock would become a plutonic rock composed mostly of quartz.

C) The rock would become more felsic with a higher concentration of magnesium.

D) The pebbles would become distorted and the sand would be recrystallized.


If so, then the answer is letter D. 

>  The change that would most likely to occur if this rock became buried deep within Earth’s crust and was subjected to intense heat and pressure, but did not melt is: The pebbles would become distorted and the sand would be recrystallized.

7 0
3 years ago
Which of the following is another way to explain "survival of the fittest"?
lora16 [44]

C. Natural Selection

5 0
3 years ago
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