<u>Answer:</u>
The correct answer option is: Cell wall.
<u>Explanation:</u>
Cell wall is that plant cell organelle which supports and maintains the cell's shape and protects the cell from the damage.
It is a thick and fibrous structure, made of cellulose, which encloses the cell in it, acting as a boundary between the components of the cell and the external environment.
The cell wall is present in plants, algae, fungi and prokaryotes.
<span>There are three primary systems in the body that act as a buffer, in order to help maintain pH stability.
The first is known as the phosphate buffer, which neutralizes excess hydroxide ions as they enter cellular fluid.
The second is called the protein buffer, and maintains acidity in the body. The hemoglobin in blood, which binds to acids in the bloodstream, is one such example of this system.
The third system is called the carbonic acid bicarbonate buffer, which neutralizes the acids generated by various metabolic processes, such as digestion and respiration.</span>
It’s Z I just took the quiz
Answer:
Option A
Explanation:
In this case, there are two varieties of horses: Domestic horses that are raised and bred by humans and Wild horses that lives in the wild. The issue of varieties in coat colour of domestic horses can be explained as what occured by selective breeding, also known as artificial selection which is a technique by which humans develop new offsprings with desirable and suitable characteristics. These breeders select two parents that possess beneficial phenotypic traits to mate, producing offsprings with those desired traits such as strength and also for coat colour as stated.
