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madreJ [45]
3 years ago
8

If a single species of squirrel evolved over time into 2 species on opposite sides of the grand canyon, we would call this an ex

ample of:
Biology
1 answer:
IrinaVladis [17]3 years ago
8 0
Geological difference
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You INCORRECTLY perform an acid-fast stain on a smear from a mixed culture of Mycobacterium smegmatis (acid-fast) cells and Stap
Dahasolnce [82]

Answer:

In acid-fast staining, carbon fuchsin is used as a primary stain which dissolves the mycolic acid present in the cell wall of <em>Mycobacterium smegmatis </em>and penetrates through it which results in staining <em>Mycobacterium</em> red.

Staphylococcus aureus cell wall does not contain mycolic acid so carbon fuchsin does not penetrate its cell wall, therefore, it becomes colorless after destaining with acid alcohol.

After destaining step methylene blue is added to stain non-acid-fast bacteria blue. So if I mistakenly forgot to use methylene blue during the procedure <em>Mycobacterium smegmatis</em> will appear red due to carbon fuchsin present in their cell wall and S<em>taphylococcus aureus</em> will appear colorless because it is destained.

5 0
3 years ago
If logging operations are conducted on a hillside near a river, the operations will most likely -
Archy [21]

Answer:

D. decrease the amount of erosion along the hillside

Explanation:

When logging operations are conducted on a hillside near a river, the operations will decrease the amount of erosion along the hillside because the tree's root hold soil particles and does not allow them to erosion. We can see in many region that there is presence of vegetation on the bank of river or stream in order to prevent erosion of soil so that's why we can say that logging operations causes decrease erosion along hillside.

3 0
3 years ago
What is an eukaryotic cell??
svet-max [94.6K]
A cell with a nucleus. The opposite is a prokaryote; a cell without a nucleus.
7 0
3 years ago
Eggs are developed and released by the<br> Sperm is produced by the
lana66690 [7]

Answer:

Eggs are developed and released by the <em>ovaries.</em>

Sperm is produced by the <em>testes</em>.

Explanation:

Ovaries are the site in females where the production of egg takes place. After the formation of an egg, the egg is transported to the fallopian tube, where it might undergo fertilization if a sperm unites with it.

Sperms are the male reproductive cells which are produced by many animals. The sperms are produced in the testes of males.

The sperm and the egg unite to form a fertilized zygote.

7 0
3 years ago
Read 2 more answers
Which force of erosion would most likely cause large amounts of loose soil to move down the slope of a hill?
geniusboy [140]
You’re correct answer is gravity
5 0
3 years ago
Read 2 more answers
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