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rosijanka [135]
3 years ago
5

Which provides the best example of perseverance ?

Biology
1 answer:
Masteriza [31]3 years ago
4 0
School is an example like you have a load of work and its hard and u keep going cuz u know it will get you someone good adn another is running a marothon even though its hard you just keep going. hope this helps and please rate below :)
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Plasmids are small circular DNA molecules found in bacteria that replicate separately from chromosomes. Why are plasmids essenti
oksano4ka [1.4K]

Answer:

DNA from a gene of interest can be inserted into a plasmid, then the modified plasmid can be inserted into a bacterial cell to replicate a gene of interest many times.

Explanation:

Plasmids are the extra-chromosomal circular DNA present in bacterial cells. Plasmids are able to replicate themselves independent of genetic DNA. Their ability to self replicate allows them to maintain themselves in the bacterial cells. This is why plasmids are used as cloning vectors in recombinant DNA technology.

A gene of interest is isolated from the donor cell and is inserted into the plasmid. The recombinant plasmid is introduced into bacterial cells where it replicates the ligated desired gene and allows the gene cloning. For example, the human insulin gene is ligated with plasmid and the recombinant plasmid is introduced in <em>E. coli</em> where it replicates the human insulin gene and allows the production of desired copies of the gene.

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3 years ago
Circle is to round as oval is to
Sholpan [36]
 A circle is to round as an oval is to elliptical/egglike.
8 0
3 years ago
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A new island formed by volcanic action may eventually become populated with biotic communities. describe the type of ecological
Katyanochek1 [597]

The type of ecological succession being described in the illustration is primary succession.

<h3>What is primary succession?</h3>

It is a form of succession that occurs when an area that has never been occupied by any living organism becomes exposed and eventually gets colonized by living organisms.

It is quite different from secondary succession which happens when an area that has been housing biotic communities before gets disrupted by a major disturbance.

A new island formed by volcanic action has never housed any biotic community before. Thus, only primary succession can occur there.

More on primary succession can be found here: brainly.com/question/26675203

#SPJ1

7 0
2 years ago
Pancreatic and intestinal enzymes operate optimally at a pH that is slightly alkaline, yet the chyme entering the duodenum from
lora16 [44]

Answer: By the help of the fluid delivered from the pancreas.

Explanation:

The human body is a very complex system consisting of many organ and organ system.

One of those systems is the the digestive system. By the help of this system the digestion and absorption of food takes place.

There are numerous number of enzymes involved in the digestion of the food released by various organs. The pancreatic and intestinal enzymes are secreted that work at alkaline pH, but the chyme that is secreted from the deodenum is slightly acidic yet they work together.

This is because pancreas pour enzyme into small intestine which is alkaline  and it then secretes huge amount of sodium bicarbonate which neutralizes the acidity of the stomach and makes the pH optimum for the digestion of food.

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How long does it take for a nuclear weapon to explode?
Pepsi [2]
Do u mean from launch to explode or the time when it hits the target?
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