Biology, 23.07.2019 02:00 hamzzaqasim44
Recent work in classification of life on earth has shown that what were once called prokaryotes are much more diverse than ever suspected. the prokaryotae are now divided into two domains, the eubacteria and the archaeabacteria, as different from each other as either is from the eukaryota. one organism, the blue-green algae or cyanobacteria, has left a fossil record that dates back nearly 3.5 billion years and is among the oldest fossils known. these blue-green algae had cell walls and were photosynthetic. a few hundred years ago, this organism was classified as a plant, then as a protist. today it is classified in the eubacteria because it
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Biology, 21.06.2019 17:00
Which of the following claims does the author support the least
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Biology, 21.06.2019 19:40
In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20
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Biology, 22.06.2019 04:00
What best explains the inability for life to exist in earth early atmosphere
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Biology, 22.06.2019 04:30
Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?
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Recent work in classification of life on earth has shown that what were once called prokaryotes are...
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