Vitamins refers to the components, which the body requires to develop and grow normally. There are in total 13 vitamins required by the body. These are classified as food soluble and water soluble vitamins.
It is generally advised to consume vitamins on a daily basis because the body has limited tendency of storage for various vitamins. Thus, they should be consumed on a regular basis in the diet.
The 'granular material' visible within nucleus in a cell typically refers to nucleoli or chromatin. Nucleoli produce ribosomes, which are crucial for protein synthesis. Chromatin is a complex of DNA and protein that forms visible chromosomes during cell division.
In Biology, the reference to granular material visible within the nucleus usually implies to nucleoli or chromatin. The Nucleolus is a small dense spherical structure in the nucleus of a cell during interphase. It is composed of proteins and nucleic acids, and its main function is to produce ribosomes, which then move out of the nucleus and take positions on the rough endoplasmic reticulum where they are essential in protein synthesis. On the other hand, Chromatin is a complex of DNA and protein found within the nucleoplasm. They take the form of loose strands during interphase but condense to form visible chromosomes during cell division. The granules you observe are probably either of these two structures, depending on the stage of the cell.
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I just took the quick check and the answers is B "They both obtain energy by consuming other organisms"