Hormones -- such as melatonin and cortisol; the former signals the body to go to bed, while the latter signals for the sleeping person to wake up -- are created by physiological changes.
Answer:
<u>D) the nucleic acid (either DNA or RNA)</u>
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Explanation:
Phages, or bacteriophages are viruses that infect bacteria.They have varying shapes, and sizes, and may contain one of two kinds of nucleic acid; these are RNA and DNA.
The nucleic acids are made up of nucleotides. These are genetic storage biomolecules made up of the monomers ribonucleic acid (RNA) deoxyribonucleic acid (DNA).
Answer:
The roots of the vegetation will loosen the soil
Explanation:
The roots of a plant grip on to the soil, holding it in place. If the roots are removed, the thing holding the soil together, then the soil will loosen and be easier to carry away by, wind, water, ice, or other factors.
Answer:
It harms the plants and animals in the water, because there is not enough oxygen in the water making it a dead zone, where nothing can live there.
