<span>Basically, the breeder selects individuals with desired traits (high milk yields, lots of wool etc) and keeps breeding then until the descendants display a very exaggerated set of traits.
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Answer:
Animals needs oxygen's to survive and plants need carbon dioxide to survive. The ozone layer reflects harmful UV rays from the sun to protect the things living on Earth.
C.
6CO2 + 6H2O + Light -> C6H12O6 + 6O2
Light is needed as energy in order for photosynthesis to occur. Photosynthesis converts carbon dioxide and water into oxygen and glucose.
