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SVETLANKA909090 [29]
3 years ago
7

Porque algunas personas sufren de miopia?

Biology
2 answers:
Shkiper50 [21]3 years ago
4 0

Answer:

Due to being nearsighted.

Explanation:

Nearsightedness can also be caused by the cornea and/or lens being too curved for the length of the eyeball. In some cases, myopia occurs due to a combination of these factor

hoa [83]3 years ago
4 0

Answer:

Debido a ser miope.

Explanation:

La miopía y / o el cristalino pueden ser demasiado cortos para la longitud del globo ocular. En algunos casos, la miopía se produce debido a una combinación de estos factores.

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Describe why this is a controlled experiment.
denis23 [38]
A Only one variable changed
3 0
2 years ago
Discribe the structure of paramecium​
Elanso [62]

Answer:

The widest part of the body is below the middle. The body of a paramecium is asymmetrical. It has a well-defined ventral or oral surface and has a convex aboral or dorsal body surface. Its whole body is covered with a flexible, thin and firm membrane called pellicles.

Explanation:

7 0
2 years ago
Read 2 more answers
(c) Name all the classes of Chordata which is warm-blooded (endothermic).
ddd [48]

The classes of chordata which are warm-blooded are birds and mammals.

Explanation:

Warm-blooded animals are those which can maintain their body temperature at a constant.  

These classes of chordates balance their internal body temperature with that of the outer environment. When the outer environment is cold, they increase their internal temperature by producing more heat; and when it is hot outside they reduce their internal temperature by cooling themselves.  

The food consumed by a warm-blooded animal fuels to maintain a constant body temperature and hence they require more food.  

Warm blooded animals cool themselves with the help of sweat glands.  

The skin and other parts like fur in birds help to keep the animals warm during winter. Birds also shed their fur in hot season to keep them light. Birds migrate to warm regions during winter.

These animals have high stamina and energy to survive environmental changes. They maintain their temperature through endothermy, homeothermy or tachymetabolism.

Whale living in water is the fish which is also warm blooded because it is a mammal.

4 0
2 years ago
during t cell maturation, the t cells must pass two tests. first, immature t cells that can recognize mhc molecules are [ select
tatuchka [14]

During T cell maturation, the t cells must pass two tests. first, immature t cells that can recognize MHC molecules are Selection. Second, immature t cells that recognize and bind to molecules normally found in the body are Activation.

Selection is the first test that T cells must pass. During this process, immature T cells that can recognize MHC molecules are selected. MHC molecules are found on the surface of cells and are involved in antigen presentation. When T cells come into contact with MHC molecules, they are able to recognize the molecules and begin the process of selection. During selection, the T cells that recognize MHC molecules are chosen over those that do not. This helps ensure that the cells that are selected are those that can properly respond to antigens.

The second test that T cells must pass is activation. During activation, T cells that recognize and bind to molecules normally found in the body are selected. These molecules are called self-antigens and can include proteins, carbohydrates, and lipids. When T cells come into contact with self-antigens, they are able to recognize the molecules and begin the process of activation. During activation, the T cells that recognize self-antigens are chosen over those that do not. This helps ensure that the cells that are selected are those that will not attack the body’s own cells.

Learn more about self-antigens at : brainly.com/question/24468411

#SPJ4

6 0
1 year ago
SOMEONE HELP PLEASSE!
charle [14.2K]

Answer:

<h2>Holaaaa !!</h2>

Explanation:

  1. at equilibrium , half of the 'O' molecules will diffuse in Next chamber while half of the 'Dark O' molecules will diffuse in First chamber.
  • ∆ can not move in either medium across Membrane.

  • 2 ∆ molecules can not move across the membrane due to its size.

Best Of Luck Sweetness !! Do well Baby !! ❤️

6 0
3 years ago
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