Biology, 18.03.2021 02:10 doggosbepis
30. The common cold is a viral disease. So is AIDS, which is caused by the Human Immunode- ficiency
Virus, or HIV. Effective vaccines against these viral diseases have not been developed despite years of
research and work by dedicated scientists. One reason for this is the rapid muta- tion rate of these viruses,
leading to new surface proteins in a very short time. Return to Model 2 to speculate about how this rapid
change in the cold virus and HIV make vaccinations difficult to develop.
Answers: 2
Biology, 21.06.2019 20:00
Which of these is a major trend in land plant evolution? a) the trend toward smaller size b) the trend toward a gametophyte-dominated life cycle c) the trend toward a sporophyte-dominated life cycle d) the trend toward larger gametophytes
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Biology, 21.06.2019 20:20
Which best describes an adaptation that could be found in a fish that lives in a slow-flowing stream? the ability to attract prey by glowingextra gills, for oxygen extractionthe ability to grow largerextra fat, for warmth
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Biology, 22.06.2019 02:00
The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food
Answers: 3
Biology, 22.06.2019 02:10
Will mark branliest. the theory of plate tectonics was developed with the contribution of scientists from many different disciplines. which of the following is a contribution from geophysicists?
Answers: 2
30. The common cold is a viral disease. So is AIDS, which is caused by the Human Immunode- ficiency...
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