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o-na [289]
4 years ago
5

Why do humans need digestive chemicals

Biology
1 answer:
lora16 [44]4 years ago
5 0

Explanation:

Chemical digestion is a vital part of the digestive process. Without it, your body wouldn't be able to absorb nutrients from the foods you eat. While mechanical digestion involves physical movements, such as chewing and muscle contractions, chemical digestion uses enzymes to break down food. Make my inbox healthier.

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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.

4 0
3 years ago
Energy in an ecosystem flows directly from
Allushta [10]

energy enters an ecosystem through photosynthesis. By feeding on plants and on one another, animals play an important role in the movement of the matter/energy though. they also influence the quantity of plant and biomass present. so the anwser is D, secondary consumers to tertiary consumers

6 0
4 years ago
Read 2 more answers
Suppose the light converged before reaching the back of the eye.
Schach [20]

Answer:

z

Explanation:

6 0
3 years ago
A ___ can grow deep into ground to access water, and can also store food for the plant
disa [49]
Roots....................
3 0
3 years ago
pretend that you touch a hot pan on the stove, and you immedentially pull your hand away without thinking about it. in this scen
slamgirl [31]

Answer:

The stimulus the thing that stimulates you is the hot pan because you were du.mb and decided to touch the hot pan. The response is you yanking your hand away from the heat because for some reason you thought touching a hot pan was a good idea.

Explanation:

Dude seriously, be conscious.

8 0
3 years ago
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