Biology

Biology, 04.07.2019 03:00, khuak877

Does mold produce a toxin to kill bacteria? or does mold prevent the growth of bacteria on a petri dish?

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Biology, 09.10.2019 06:30, aidengalvin20

Alexander fleming was a biologist who was best known for his discovery of the antibiotic penicillin. during his research, dr. fleming noticed that there was no bacterial growth where there was mold growing on his petri dishes. he could have thrown out his plates, but instead he cultured the mold. how did dr. fleming’s creativity lead to a scientific discovery? he noticed that bacteria cells and mold coexisted well. he observed that bacterial cells had become mold. he concluded that the mold inhibited the growth of bacteria. he inferred that mold and bacteria share most of their dna.

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Biology, 15.10.2019 16:30, NewKidnewlessons

Alexander fleming was a biologist who was best known for his discovery of the antibiotic penicillin. during his research, dr. fleming noticed that there was no bacterial growth where there was mold growing on his petri dishes. he could have thrown out his plates, but instead he cultured the mold. how did dr. fleming’s creativity lead to a scientific discovery? he noticed that bacteria cells and mold coexisted well. he observed that bacterial cells had become mold. he concluded that the mold inhibited the growth of bacteria. he inferred that mold and bacteria share most of their dna.

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Chemistry, 28.10.2019 19:31, kevonmajor

In the early twentieth century, what was alexander fleming’s hypothesis concerning the relationship between a yellow-green mold and certain strains of bacteria? a. he thought the bacteria had released a chemical that caused the mold to grow. b.he thought the bacteria fed on the mold, causing it to shrink and disappear. c. he thought the mold had released a chemical that prevented the bacteria’s growth.

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