Biology, 20.12.2019 10:31 Baby010391
Is anyone smart enough to answer this impossible question?
over the past 50 years, natural selection has caused populations of an infectious bacterium to evolve resistance to most antibiotics. if antibiotic use were stopped, which of the following is most likely to occur within the bacteria populations?
the bacterium will go extinct without the presence of antibiotic.
the frequency of nonresistant forms will decrease in these population.
the bacteria populations will begin colonizing new environments.
the frequency of resistant forms will decrease in these populations.
Answers: 1
Biology, 21.06.2019 20:00
What causes an unsaturated fatty acid to have a different shape than a saturated fatty acid? o a. unsaturated fatty acids have more hydrogen atoms. o b. unsaturated fatty acids have double carbon bonds. o c. unsaturated fatty acids have more nitrogen atoms. o d. unsaturated fatty acids have single carbon bonds.
Answers: 3
Biology, 21.06.2019 23:30
The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2
Answers: 2
Biology, 22.06.2019 02:30
What is the surface temperature of the ocean where hurricanes form? greater than 80 celsius approximately 27 celsius at least 76 celsius less than 10.5 celsius
Answers: 1
Is anyone smart enough to answer this impossible question?
over the past 50 years, natural se...
over the past 50 years, natural se...
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