Biology, 03.01.2020 07:31 rebekah1503
Match the staining techniques with their purpose.
a negative stain such as india ink or congo red.
b the gram stain
c the ziehl-neelsen acid-fast stain
d simple stain with a basic dye
e the schaeffer-fulton endospore stain
stain microbes a bright color to make it easier to see them in bright field microscopy.
identify bacillus or clostridium species, such as the causative agents of anthrax, botulism, tetanus and gangrene.
divide bacteria into two groups based on cell wall structure (thick vs. thin).
identify bacteria with waxy cell walls such as: mycobacterium tuberculosis (the cause of tb).
look for the presence of a capsule.
Answers: 3
Biology, 22.06.2019 13:10
Which of the following is caused by reproductive isolation within a species? a. a decrease in gene flow b. an increase in genetic flow c. a decrease in genetic drift d. an increase in gene flow
Answers: 2
Biology, 22.06.2019 15:30
When does a spring tide occur? question 9 options: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall. they occur on the date of the vernal equinox each year, no matter what stage the moon is in. this is why they are called spring tides. they occur when the sun, moon, and earth are at 45-degree angles from each other. this happens once every spring. they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur all year long.
Answers: 2
Match the staining techniques with their purpose.
a negative stain such as india ink or congo...
a negative stain such as india ink or congo...
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