Specialized cell junctions<span> occur at points of cell-cell and cell-matrix contact in all tissues.</span>
It’s the source of all the energy from all the stars ... until their fuel is used up
Answer:
An amino acid is an organic molecule that is made up of a basic amino group (−NH2), an acidic carboxyl group (−COOH), and an organic R group (or side chain) that is unique to each amino acid.
Explanation:
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Adjustment knobs are used to focus light in a light microscope
Answer:
Nitrogen is so vital because it is a major component of chlorophyll, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (i.e., photosynthesis). It is also a major component of amino acids, the building blocks of proteins. Without proteins, plants wither and die.
