Biology, 04.01.2020 01:31 kajtazi1157
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.
Answers: 3
Biology, 21.06.2019 22:00, ellemarshall13
In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .
Answers: 1
Biology, 21.06.2019 22:00, queenpanda365
Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.
Answers: 3
Biology, 22.06.2019 03:00, babygirlqueen5588
Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.
Answers: 2
Alexander fleming was a biologist who was best known for his discovery of the antibiotic penicillin....
Mathematics, 27.01.2020 21:31
World Languages, 27.01.2020 21:31
Mathematics, 27.01.2020 21:31