Biology, 12.12.2020 15:50 QueenNerdy889
Penicillin was the first antibiotic introduced during World War II. Today, many bacteria are resistant to antibiotics. Which statement explains the appearance of these resistant varieties?
Group of answer choices
A. Penicillin shared DNA with bacteria to produce resistant strains.
B. Penicillin became less concentrated over the last few decades.
C, Penicillin killed most of the bacteria but left the resistant bacteria to reproduce.
D, Penicillin causes bacteria to reproduce more quickly to maintain a consistent population.
Answers: 2
Biology, 22.06.2019 09:00
The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer
Answers: 2
Biology, 22.06.2019 11:00
Examine the air pressure map. which type of line is shown on the map?
Answers: 1
Biology, 22.06.2019 18:30
Brian has a medical condition called cone dystrophy, which is a disorder of the cone cells in the eye. what symptoms would you expect brian to have? a. inability to see in the dark b. difficulty determining colors c. difficulty determining shapes and outlines d. inability to see in all light conditions
Answers: 2
Penicillin was the first antibiotic introduced during World War II. Today, many bacteria are resista...
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