Answer:
The ozone layer protects the Earth against most UVB coming from the sun. It is always important to protect oneself against UVB, even in the absence of ozone depletion, by wearing hats, sunglasses, and sunscreen. However, these precautions will become more important as ozone depletion worsens.
Explanation:
<span>Mucous membranes provide a mechanical barrier at body openings. They also line the respiratory, GI, urinary, and reproductive tracts. Mucous membranes secrete mucus, a slimy substance that traps pathogens. The membranes also have hair-like cilia.</span>
Answer:
The amplitude of a wave is the height of a wave as measured from the highest point on the wave (peak or crest) to the lowest point on the wave (trough). Wavelength refers to the length of a wave from one peak to the next.
Explanation:
Answer: number of daughter cells per cell
Explanation: The process of meiosis give rise to four daughter cells that are haploid, that is, they contain half the number of chromosomes of the diploid parent cells. In the process of mitosis, two daughter cells are usually produced.
Photosynthesis<span> and </span>cellular respiration<span> are complementary processes by which living things obtain needed substances.</span><span> They both consume and create the same substances (water, glucose, oxygen, and carbon dioxide) but in </span>different<span> ways.
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