1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Amiraneli [1.4K]
3 years ago
8

the potential for antibiotic resistance was recognized in the early 1940s, almost immediately after the first large-scale clinic

al use of penicillin, the first antibiotic. mass production of penicillin was part of the war effort of world war ii, when the drug was used widely by military populations to treat the wounded. however, even before the war had ended, resistance to penicillin was already being reported. in 1940, british biochemists sir ernst boris chain and sir edward penley abraham published a report about a bacterial enzyme capable of destroying penicillin. in the following decades, overuse and repeated exposure to antibiotic agents favored the selection and replication of numerous strains of antibiotic-resistant bacteria. select all of the statements that accurately portray the role of natural selection in antibiotic resistance. a) when bacteria are repeatedly exposed to antibiotics, they learn how to avoid the antibiotic and survive to reproduce. b) when people overuse antibiotics, the bacteria get resistant to the antibiotic and it is no longer an effective treatment. some bacteria possess a gene for bacterial resistance. these bacteria are likely to survive a course or antibiotics and reproduce. 09 d) bacteria containing the gene for antibiotic resistance can share a plasmid of the gene with other bacteria, allowing the population of bacteria with antibiotic resistance to survive and reproduce. when someone quits taking an antibiotic when they are feeling better, they likely kill only the weaker bacteria. the bacteria with a gene for antibiotic resistance survive, giving them the opportunity to reproduce. e
Biology
1 answer:
Salsk061 [2.6K]3 years ago
3 0

Answer: c,d,e

Explanation:

I did this and this is correct

You might be interested in
What would happen to other organism if a virus attacked all the fish and killed 50% of them ?
iren [92.7K]

Answer:

Other species that rely on those fish would die off. The extinction of one species can lead to the extinction of another and so on.

8 0
3 years ago
How does lactulose help with hepatic encephalopathy?
galben [10]

<span>Hepatic encephalopathy is a condition seen patients with liver dysfunction and this condition describe a spectrum of reversible neuropsychiatric abnormalities which implies that altered brain function which is due to metabolic abnormalities. However, the administration of lactulose causes reduction in the urea production rate which is consistent with the reduced entry of ammonia into portal blood.</span>

5 0
3 years ago
Illustration below which stage is germination first visible
NeX [460]
Is this about seeds..?
5 0
3 years ago
Draw the structure of DNA nucleotide with adenine as nitrogenous base <br>​
zavuch27 [327]

Answer:

A nucleotide is made up of one sugar molecule, one phosphate molecule and one of the four bases. Here is the structural formula for the four nucleotides of DNA. Note that the purine bases (adenine and guanine) have a double ring structure while the pyrimidine bases (thymine and cytosine) have only a single ring.

Explanation:

A nucleotide is made up of one sugar molecule, one phosphate molecule and one of the four bases. Here is the structural formula for the four nucleotides of DNA. Note that the purine bases (adenine and guanine) have a double ring structure while the pyrimidine bases (thymine and cytosine) have only a single ring.

5 0
3 years ago
The calvin cycle takes place in the?
Anton [14]
"The Calvin cycle, Calvin–Benson–Bassham (CBB) cycle, reductive pentose phosphate cycle or C3 cycle is a series of biochemical redox reactions that take place in the stroma of chloroplast in photosynthetic organisms. ... This set of reactions is also called carbon fixation. The key enzyme of the cycle is called RuBisCO."
8 0
3 years ago
Other questions:
  • Explain why something with only one cell can be considered to be an organism.
    10·1 answer
  • The white, cheesy-looking substance that is produced by the sebaceous glands and protects a baby's skin while it is floating in
    15·1 answer
  • Differentiate between solving a problem with science and a problem without science
    10·1 answer
  • _refers to a procedure in which the fetus is delivered up to its head and the brain matter is removed A.chemical abortion B.pill
    13·2 answers
  • An oak tree produces two kinds of leaves: large with shallow lobes and narrow with deep lobes. If this dimorphism is based solel
    5·1 answer
  • In animals, the inability to make the pigment melanin results in albinism, a recessive autosomal condition. Two unaffected paren
    5·1 answer
  • Briefly describe Wernicke and Broca aphasia. What is a main difference of these two classic types of aphasia and can be useful i
    15·1 answer
  • The energy transformations are similar because they both involve transformations that
    9·1 answer
  • Any will help! Please!!
    5·2 answers
  • 1. Wave speed depends on the type of wave, the _______ , and the medium the wave is traveling through
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!