subject
Biology, 27.01.2020 21:31 cynayapartlow88

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?

a. he noticed that bacteria cells and mold coexisted well.

b. he observed that bacterial cells had become mold.

c. he concluded that the mold inhibited the growth of bacteria.

d. he inferred that mold and bacteria share most of their dna.

ansver
Answers: 3

Another question on Biology

question
Biology, 21.06.2019 17:00
Which of the following protists gets nutrients mainly by absorbing molecules from other organisms through their cell walls and cell membranes? a. amoebas b. water molds c. ciliates d. slime molds
Answers: 2
question
Biology, 22.06.2019 09:30
2. does the given statement describe a step in the transformation of the graph off(x) = x2 that would result in the graph of g(x) = -5x + 2)? a. the parent function is reflected across the x-axis. o yes nob. the parent function is stretched by a factor of 5. yes noonc. the parent function is translated 2 units up.o yes
Answers: 2
question
Biology, 22.06.2019 13:50
Interactions between organisms and their environment impact the organism’s overall population. the jaguar panthera onca is the largest cat in north america. it is found in areas across the southwest, including arizona, new mexico, and texas. it is a carnivore that has powerful jaws and sharp teeth and preys on fish, turtles, tapirs, and many smaller mammals. which shows the relationship between the jaguar and turtles?
Answers: 3
question
Biology, 22.06.2019 15:00
How do temperature and salinity affect deepwater currents? they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water.
Answers: 1
You know the right answer?
Alexander fleming was a biologist who was best known for his discovery of the antibiotic penicillin....
Questions
question
Mathematics, 11.01.2021 21:50
question
Mathematics, 11.01.2021 21:50
question
Mathematics, 11.01.2021 21:50
question
Biology, 11.01.2021 21:50
question
Arts, 11.01.2021 21:50