The graph shows how the percentage effectiveness of antibiotic $$\(F\)$$ against MRSA bacteria varied between 1980 and 2000. What is a correct conclusion from the graph?

A.
Antibiotic \(F\) was completely ineffective against MRSA in 2000.
B.
Antibiotic F was most effective in 1982.
C.
MRSA developed resistance to antibiotic \(F\) between 1981 and 2000.
D.
The greatest decrease in effectiveness of antibiotic \(F\) against MRSA was between 1988 and 1990.
Biology
IGCSE&ALevel
CAIE
Exam No:0610_s24_qp_12 Year:2024 Question No:28

Answer:

C

Knowledge points:

2.1.1 Describe and compare the structure of a plant cell with an animal cell, as seen under a light microscope, limited to cell wall, nucleus, cytoplasm, chloroplasts, vacuoles and location of the cell membrane
2.1.10 State that cells with high rates of metabolism require large numbers of mitochondria to provide sufficient energy
2.1.2 State the functions of the structures seen under the light microscope in the plant cell and in the animal cell
2.1.3 State the functions of the structures seen under the light microscope in the plant cell and in the animal cell
2.1.4 State the functions of the structures seen under the light microscope in the plant cell and in the animal cell
2.1.5 State the functions of the structures seen under the light microscope in the plant cell and in the animal cell
2.1.6 State that the cytoplasm of all cells contains structures, limited to ribosomes on rough endoplasmic reticulum and vesicles
2.1.7 State that almost all cells, except prokaryotes, have mitochondria and rough endoplasmic reticulum
2.1.8 Identify mitochondria and rough endoplasmic reticulum in diagrams and images of cells
2.1.9 State that aerobic respiration occurs in mitochondria

Solution:

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