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tigry1 [53]
3 years ago
11

The agricultural revolution took place approximately A. 300 years ago B. 100,000 years ago C. 100 years ago D. 10,000 years ago

Biology
1 answer:
shepuryov [24]3 years ago
5 0

D. 10,000 year's ago (thought to have happened around 10,000 b.c)

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Why do plants need glucose select 2 answers <br><br> I will give a brainless pls answer correctly
patriot [66]

Answer:

To make ATP through cellular respiration.

To make cell wall.

Explanation:

5 0
2 years ago
give an example of what the failure on an organ have on other organ systems? pls write your answer short! Thanks in advance!
devlian [24]
Hey this is late, but if an organ fails, like for example the kidney fails right? So then it affects the heart. and so on, because the kidney helps clean the blood and your body needs blood.
8 0
3 years ago
A student is setting up a model to study the carbon cycle and natural sources of carbon dioxide. They create a microenvironment
Alex Ar [27]

The natural source of carbon dioxide that was left out is the calcareous shells of organisms. The major metabolic process that was left out is respiration.

<h3>What is carbon dioxide?</h3>

Carbon dioxide is one of the gases that cycle around in the universe. It is an integral part of the carbon cycle. The carbon cycle is a model that depicts the movement of carbon in the ecosystem.

The natural source of carbon dioxide that was left out is the calcareous shells of organisms. The major metabolic process that was left out is respiration.

Learn more about carbon dioxide: brainly.com/question/3049557

8 0
2 years ago
What is the best explanation if the gel of your PCR product shows smeared bands of multiple sizes? Select one:
trapecia [35]

Answer:

e. None of the above

Explanation:

For me as a Researcher, the reason could be increased Concentration of your DNA sample which you are using as your template. Try to decrease the concentration of DNA (up to 100 ng per reaction is enough and can increase up to 200 ng). so the reason for getting non specific bands is increase concentration of DNA  which results in non specific amplification and also degradation of DNA in the reaction which you can see in your gel electrophoresis results.  

i always corrected my results using the same technique that is lowering the concentration of DNA between 100 and 200 ng per single reaction of PCR.

8 0
2 years ago
What codes for proteins?
Serjik [45]

Answer:

DNA

Explanation:

5 0
3 years ago
Read 2 more answers
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