Biology, 29.07.2019 14:10 Ponypepper5699
What is the role of the greenhouse gases in the atmosphere? a) they trap some of the sun’s heat energy within the atmosphere, to maintain earth’s average temperature. b) they prevent most of the sun’s rays from reaching earth, thereby preventing earth from heating up. c) they divert the sun’s heat from the equator to the poles, causing the ice caps to melt, leading to global warming. d) they destroy the ozone layer, allowing harmful ultraviolet rays of the sun to reach the surface of earth.
Answers: 2
Biology, 22.06.2019 05:00
Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?
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Biology, 22.06.2019 05:30
The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.
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Biology, 22.06.2019 07:00
What is the process of a new plant growing from its seed into a seedling? primary growth fertilization pollination germination
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What is the role of the greenhouse gases in the atmosphere? a) they trap some of the sun’s heat ene...
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