Answer:
Common to all plant species, the cell wall is the tough outer coat that protects the plant cell. The cell wall is mostly carbohydrate‐based, comprising three major classes of polysaccharides: cellulose, hemicellulose and pectin. There are also important structural proteins as well as phenolic and aliphatic polymers.
Explanation:
Answer:
D. Northern hemisphere
Explanation:
As we can see North pole has polar day, and Northern hemisphere is closer to the sun.
Answer:
a
Explanation:
the other two you dont know if everyone will see it
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The electromagnetic radiation with the shortest frequency is MICROWAVES.
Electromagnetic spectrum refers to the distribution of electromagnetic radiations according to their frequency or wavelengths. Electromagnetic spectrum is made up of many type of radiation, which have different properties. The frequency of electromagnetic radiation refers to the number of wave cycle that is formed per second. The electromagnetic radiation with the highest frequency is gamma ray while the radiation with the shortest frequency is radio wave. For the question given above, the radiation with the shortest frequency is microwaves.
Due to its deoxyribose sugar, which contains one less oxygen-containing hydroxyl group, DNA is a more stable molecule than RNA, which is useful for a molecule which has the task of keeping genetic information safe. RNA, containing a ribose sugar, is more reactive than DNA and is not stable in alkaline conditions.
