They're multiple ways to categorize nearly everything in biology. The value of an individual categorization scheme depends on the perspective of the user. The Classification of organisms is a hard task causes many organisms to have their differences and similarities, whereby making it very complicated in classifying organisms.
The best answer i see is A)- Cooling
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Answer: SECONDARY CELL WALL.
Explanation: When cell wall grow,it becomes thickened,then it further deposits new layers of a different material (different from that of the primary cell wall) from where secondary cell wall is formed.
This secondary cell wall is made up of cellulose,hemicellulose,and lignin.
They function in providing additional strength,support, rigidity to cells and the larger plant.
