Biology, 03.08.2019 07:30 bikerhomie
Why is pcr a necessary step in the analysis of a dna sample taken from a crime scene a: the sample yields very little dna b: the sample may be contaminated c: the sample undergoesdegradation d: the sample may not provide an accurate sequence
Answers: 1
Biology, 21.06.2019 19:00
Which describes how weathering and erosion are different? weathering is caused by water. erosion is caused by wind and ice. erosion transports sediments. weathering is a natural process.
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Biology, 22.06.2019 09:00
When the cell concentrates potassium within, against the natural tendency of matter, it is performing a.passive diffusion b.facilitated diffusion c.active transport d.pinocytosis
Answers: 2
Biology, 22.06.2019 10:00
The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .
Answers: 1
Biology, 22.06.2019 15:30
(me out over the last several centuries, scientists have made the following broad observations while investigating several branches of the life sciences: -the fossil record shows that different types of organisms have existed at different times in earth's history. -many organisms have similar body structures that seem to be adapted to different ways of living in their environment. -organisms of different species often share similarities in stages of embryonic development. -many species share genetic similarities, and almost all organisms use the same basic building blocks to construct proteins. -often, the extent of two species' similarities can be predicted from their geographic closeness to each other. -a great deal of change has been observed among species that have experienced strong selective pressures through many generations. scientists have carefully considered and rigorously tested the observations listed above. when scientists offer a of these observations, they are making 1.) testable explanation, deductive explanation 2.) scientific interference, scientific law
Answers: 3
Why is pcr a necessary step in the analysis of a dna sample taken from a crime scene a: the sample...
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