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IrinaK [193]
3 years ago
7

A major factor in changing the frequencies of the genes in the gene pool

Biology
1 answer:
Soloha48 [4]3 years ago
5 0

Answer: b

Explanation:

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Place the steps in the proper order that you would follow when you are aseptically subculturing Staphylococcus aureus on a trypt
max2010maxim [7]

Answer:

1) Sterilize the loop.

2)Flame lip of TSS culture with <em>S. aureus</em>.

3) Remove some bacteria from surface of TSS culture with <em>S. aureus.</em> Remove loop.

4)Flame lip of TSS culture with <em>S. aureus</em>.

5)Flame lip of broth culture tube.

6) Dip loop into sterile TSB and swirl. Remove loop.

7)Flame lip of broth culture tube.

8) Sterilize the loop.

Explanation:

The aseptic technique is a s<u>eries of steps to prevent contamination during manipulations of cultures and sterile culture media</u>. A mastery of aseptic technique is required for maintaining pure cultures, as airborne contaminants are virtually everywhere. Picking an isolated colony and restreaking it is the main method for obtaining pure cultures from liquid samples containing several different organisms and is a common procedure in the microbiology laboratory. Other techniques for obtaining pure cultures have been developed that are especially suited for particular groups.

3 0
3 years ago
Which would best explain why one red blood cell hemolyzes more quickly than another?
lina2011 [118]

The statement that would best explain why one red blood cell hemolyzes more quickly than another is if the cell that hemolyzes more quickly acquires NaCl at a faster rate.

Water moves by osmosis in and out of cells from the region of high water potential or low solute concentration to the region of low water potential or high solute concentration.

A cell with a higher solute concentration than the surrounding solution will keep acquiring water from its surrounding until the cell becomes turgid and bursts or lyses due to over-turgidity.

If the reverse occurs, such a cell will lose water and become flaccid.

Thus, if a red blood cell acquires NaCl, a solute, at a faster rate, such a cell will also acquire water and become turgid/lyses at a faster rate.

More on hemolysis can be found here: brainly.com/question/6598052

4 0
3 years ago
The part of an experiment used to compare all the other groups
KengaRu [80]
I'm pretty sure the word you're looking for is data.
4 0
3 years ago
Read 2 more answers
In a controlled experiment, the ___ is the group that receives some type of treatment.
marysya [2.9K]
Independent experiment.
5 0
3 years ago
Margaret Brown
Kobotan [32]

Answer:

A. Gazed

Explanation:

you cant heave or descend into someones eyes. Gazing or looking into someone's eyes makes the most sense.

7 0
3 years ago
Read 2 more answers
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