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Biology, 20.04.2021 00:44 dbn4everloved8
The Florida manatee is very sensitive to temperature changes. As a result, manatees migrate to warmer waters in the winter. They espezy ke to pass the winter months near energy stations, which discharge warm water into local waters Manatees normally rest and feed often They communicate by Suning under water to show fear, stress, or excitement. Which manatee behavior is an example of a response to seasonal change?
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According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?
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Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?
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The Florida manatee is very sensitive to temperature changes. As a result, manatees migrate to warme...
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