Kenny has a sore throat and visits the doctor. the nurse collects a throat swab, places the swab on a petri dish, and then places the petri dish into an incubator. why would she culture them at 37°c?
a) because at this high temperature any harmful bacteria would be killed
b) because bacteria need a variety of temperatures to survive long enough to be studied
c) because growth at 37°c would be ideal for revealing bacteria that are human pathogens
d) because the bacteria could safely be studied but would not reproduce at this temperature
Answers: 3
Biology, 21.06.2019 21:30
I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.
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Biology, 21.06.2019 22:00
Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.
Answers: 2
Biology, 22.06.2019 01:50
Four different thermometers were used to measure the temperature of a sample of pure boiling water. the measurements are recorded in the table below. thermometer temperature reading 1 temperature reading 2 temperature reading 3 w 100.1°c 99.9°c 96.9°c x 100.4°c 102.3°c 101.4°c y 90.0°c 95.2°c 98.6°c z 90.8°c 90.6°c 90.7°c the actual boiling point of pure water is 100.0°c. what can be concluded from the data about the reliability and validity of the thermometers?
Answers: 1
Kenny has a sore throat and visits the doctor. the nurse collects a throat swab, places the swab on...
Advanced Placement (AP), 09.11.2020 16:40