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elena-14-01-66 [18.8K]
3 years ago
6

Severe combined immunodeficiency (SCID): Group of answer choices is a result of the absence of macrophages or B cells. affects o

nly part of the adaptive immune response. can be caused by failure of TAP transporters. is caused by the lack of T cell and B cell maturation/differentiation.
Biology
1 answer:
EastWind [94]3 years ago
3 0

Answer:

is a result of the absence of macrophages or B cells.

Explanation:

Severe combined immunodeficiency (SCID) results due to the absence of macrophages or B cells that is responsible for the immunity of  our body. Severe combined immunodeficiency (SCID) is an inherited immunodeficiency disease (PIDD) that presents in infancy results  in a weak immune system that is unable to fight against even mild infections so due the absence of macrophages or B cells, the body is vulnerable to diseases.

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The Grand Coulee dam and hydroelectric plant are located on the Columbia River in Washington state.
marin [14]

Answer:

Explanation: Hydropower is the generation of electricity from water through the construction of dams. it is a renewable energy source use over a wide range of environment. Construction of a waters storage project can raise the water level behind a dam from a few feet to several hundred feet by prevention water free flow called Inundation.

It leads to migration of human and other living organism such as fish and salmon. Salmon movement may be disoriented through the slower move of the water this leads to migration.

Fish moving around the dam coming in contact with turbines and the walls of the dam can become stressed, injured or die

vegetation and surrounding water it provide habitat for birds, waterfowl, and small and large mammals when hydroelectric project results in blockage of free-flowing river, the nesting, forage, and cover provided for the organism in these areas is temporarily or permanently lost.

5 0
3 years ago
Why is water said to have a high "specific heat index"
Vlada [557]
It's because of hydrogen bonding among water molecules
3 0
3 years ago
34. Enzymes produced by human cells generally work best at temperatures close to​
Tanya [424]

Answer:

37 degrees Celsius

Explanation:

Most enzymes in the human body function best at around 37 degrees Celsius, which is 98.6 degrees Fahrenheit.

3 0
3 years ago
Consider a situation in which the enzyme is operating at optimum temperature and pH, and has been saturated with substrate. What
almond37 [142]

Answer:

The correct answer is option C, that is, increase the concentration of the enzyme.

Explanation:

Biological molecules or proteins that enhance the rate of a chemical reaction taking place within the cell are known as enzymes. These proteins play an essential part in the proper functioning of the body, as they help in the process of metabolism and digestion.  

In the given case, if the enzyme gets saturated with the substrate, and is working at optimum pH and temperature, then to enhance the rate of the reaction the only thing that can be done is to enhance the concentration of the enzyme. However, further stimulation of some of the enzymes can be done with the addition of allosteric activators in the reaction, otherwise, enhancing the concentration of the enzyme is the only way.  

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A single species that has evolved into several different forms that live in different ways has undergone a. adaptive radiation b
wlad13 [49]
A single species that has evolved into several different forms that live in different ways has undergone "b. convergent evolution" since the multiple "divergent" species are seen to "converge" into a single species if you go back far enough in time. 
8 0
3 years ago
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