![subject](/tpl/images/cats/biologiya.png)
Biology, 28.06.2019 18:00 jojojojo5730
It was discovered by alexander fleming in the 1920's that penicillium notatum produced a substance, know as penicillin, which had antibiotic properties. many would consider this to be one of the greatest and most important medical discoveries of all time. penicillium notatum is what type of organism? a) bacteria b) fungi c) protist d) virus
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 02:00
The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.
Answers: 3
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 05:50
The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes
Answers: 2
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 08:30
Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass
Answers: 3
You know the right answer?
It was discovered by alexander fleming in the 1920's that penicillium notatum produced a substance,...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 31.03.2020 03:24
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 31.03.2020 03:24
![question](/tpl/images/cats/istoriya.png)
History, 31.03.2020 03:24
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 31.03.2020 03:24