Plants are divided into small, sac like structures known as alveoli so that the capillaries can absorb the oxygen.
Answer:
Within a population, each individual mutation is extremely rare when it first occurs; often there is just one copy of it in the gene pool of an entire species. But huge numbers of mutations may occur every generation in the species as a whole.
Works Cited:
Oct 29, 2007
Https://www.scientificamerican.com
Explanation:
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The answer is B Microscope :)
Answer:
Climate change affects patterns of migration. Global warming also influences the routes of many migratory birds and their annual migration rhythm. A lot of migratory birds change their routes, shorten or completely cancel their journey as a result of changing temperatures.
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Answer:
D bc all the wavelengths are the same
Explanation:
D for sure