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Ahat [919]
3 years ago
6

How do we classify rocks

Biology
1 answer:
dlinn [17]3 years ago
8 0

Answer:

Rocks can be divided into three basic classifications: igneous, sedimentary, and metamorphic. The following tests are used by experts to classify rocks: Hardness Test Minerals are scaled in range from 1 to 10, with 1 being softest and 10 hardest. The method of determining hardness is the scratch test.

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Scientists who study evolution at or below the species level are most likely___.
Natalija [7]

Ans. Microevolutionalists

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2 years ago
What are two things that can be done to maximize the chances of recovering parasites from a fecal smear?
RideAnS [48]
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7 0
3 years ago
Match the functional groups with their structures:
evablogger [386]
The true answer of your question is :

OH : HYDROXYL GROUP

NH2 : AMINO GROUP

CH3 : METHYL GROUP ( but in rather broader terms, that functional group of formula CnH2n+1 where n is an integer is called ALKYL GROUP where by substituting n by 1,2,3... we obtain methyl for n = 1, ethyl for n = 2, and propyl for n = 3 )

COOH : CARBOXYL GROUP is the correct answer since carbonyl is characterized by the presence of functional group C=O in general the formula of the compound would be
R-C=O-R’ where R and R’ are alkyl groups like methyl for example. However the carboxyl group could be thought of as a summation of carbonyl + hydroxyl ( CO + OH ) resulting thus in COOH.

I hope you’ll understand everything, anyway if not i’m always here to help. ♥️
7 0
3 years ago
Which of these is NOT a component of the lac operon?
Assoli18 [71]
There is not any options but the parts of Lac Operon is:

Promoter 
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Hope this helps!


3 0
2 years ago
What percentage of the moon as seen from Earth is illuminated during the third quarter phase?
Alex73 [517]

Answer:

50% of the moon is illuminated during a third quarter phase

4 0
3 years ago
Read 2 more answers
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