Hey there!
In your body, you have 46 pairs of chromosomes, which make up you! 23 come from your mom, and 23 come from your dad, and they give you traits from each of your parents because of heredity.
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Answer:
If we are watching the sky, we see the lightning before we hear the thunder. That is because light travels much faster than sound waves. We can estimate the distance of the lightning by counting how many seconds it takes until we hear the thunder. It takes approximately 5 seconds for the sound to travel 1 mile.
Explanation:
They are sensitive to changes in arterial carbon dioxide, oxygen and Ph.
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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:
