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salantis [7]
3 years ago
11

Anyone knows thisss???

Biology
2 answers:
Artyom0805 [142]3 years ago
8 0
The 3rd is the right answer
Olenka [21]3 years ago
4 0

Answer:

The answer is the 3rd option.

Explanation:

This is because option 1 and 2 don't make sense and the 4th option if you count lll. has 4 elements where l. has 3 elements.

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Explain four treatment options for hazardous waste.
marusya05 [52]

Chemical methods--It includes ion exchange, precipitation, oxidation and reduction, and neutralization.........

Thermal methods--In this, high-temperature incineration, which not only can detoxify certain organic wastes but also can destroy them....

Biological treatment-- It is of certain organic wastes, such as those from the petroleum industry by a special method called landfarming

Physical treatment-- It concentrates, solidifies, or reduces the volume of the waste. Physical processes include evaporation, sedimentation, flotation, and filtration....

6 0
3 years ago
Which of these questions is scientific?
erastova [34]

Answer:

Hi elmo!

Explanation:

ANd i think the answer is C!

hope this helps c:

8 0
3 years ago
The ________ is a substage lens that concentrates light on the specimen.
stiks02 [169]

Answer:

microscope's condenser

Explanation:

The microscope's condenser is a substage lens that concentrates light on the specimen.

<em>The condenser of a microscope is a structure that helps concentrate light rays from the light source to illuminate the specimen on the stage of the microscope. It is made up of a system of lens that converges the ray of light and an aperture diaphragm that can be used to control the amount of light that gets to the specimen on the stage of the microscope.</em>

6 0
3 years ago
Selective breeding in the process of choosing the best characteristics of organisms through many generations to improve the vari
Fiesta28 [93]
1) true
2)false
3)true
4)false
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5 0
3 years ago
Imagine you are a student trying to decode the genetic code. An artificial mRNA molecule consisting of poly-CA (5ʹ... CACACACACA
Semmy [17]

Answer:

ACA: Threonine

CAC: Histidine

Explanation:

To answer this question we need to remember that the ribosome reads every three bases or 'codon' in order to assign the right tRNA carrying the amino acid.

In the first artificial mRNA we see two patterns of three letter:

CAC and ACA.

In the second artificial mRNA we are able to identify three different patterns:

CAA

AAC

ACA

And they repeat, so we end with three different polypeptides: polythreonine, polyglutamine and polyasparagine. This will depend on the initial letter the ribosome starts reading.

The only amino acid that repeats in both artificial mRNAs is Threonine,  and we see its pattern ACA also repeated.

So, we could assign this codon (ACA) to threonine.

We can then assume that the pattern CAC codifies for histidine since we only get this two polypeptides in the first mRNA.

Lastly with the information provided we cannot determine the codons AAC and CAA for glutamine or asparagine. We would need further experiments.

5 0
3 years ago
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