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Art [367]
3 years ago
11

Which human activity negatively affects the stability of the environment? A.Dumping pollutants into the ocean B.Recycling plasti

c C.Creating wildlife reserves D.Planting trees
Biology
2 answers:
sineoko [7]3 years ago
7 0
The human activity that badly affects stability of the environment is A dumping pollutants Into  the oceans because they are putting chemicals that kill sea organisims , its not any of the other answers because if you recycle you aren't hurting the environment creating reserve is helping wild life and planting trees is good because you are helping the atmosphere [side note] trump removed the regulations for dumping pollutants into oceans rivers streams and lakes the world is ending as we know it
ICE Princess25 [194]3 years ago
4 0
A. dumping pollutants into the ocean

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The prominent examples of marine ecosystems include the
solniwko [45]

Answer:

I think the awnser is D. Hope it helps

6 0
3 years ago
Help with number 16 pweez if U know the answer to the other questions pweez answer them, thx if u do! ❤
Tema [17]
16.  Organelles can move around the cytoplasm and perform activities that are necessary for life.  Each organelle has a different job.


17. The function of the nucleus is it's the main command of the cell which means that it controls most of the cell's activities.

18. It converts heat energy and turns it to food in which the cell can eat.

20.  It helps control what enters and leaves the cell.

22.  Cell Wall, Chloroplasts, 
7 0
3 years ago
Food webs show the flow of what between one type of organism to the next?
monitta

Answer:

yeah

Explanation:

6 0
3 years ago
K.N. is a 24 y.o. woman who presents to the clinic complaining of sudden urgency to urinate, frequent urination, and pain with u
Murrr4er [49]

Answer: Diagnosis: The presence of nitrites in the urine confirms the urinary tract infection.

Explanation:

Treatment: The urinary tract infection will be concerned with the antibiotic therapy to kill the bacteria producing excess nitrites. Educating K.N. about the risk factors associated with the multiple sex partners and transfer of bacteria through sexual contact.

Use of fluroquinolones and nitrofurantoin:

Fluroquinolones: This is an antibiotic which has bacteriocidal property can be useful in the treatment of urinary tract infections.

Nitrofurantoin: It is an effective antibiotic in killing bacteria it gets activated inside the bacteria.

Nitrituria is a condition in which the nitrites are present in the urine that is indicative of the presence of bacterial infection. It is caused by the <em>E. coli</em> bacteria inside the urinary tract. It is responsible for converting the nitrates into nitrites.

3 0
3 years ago
Describe how a plasmid can be genetically modified to include a piece of foreign dna that alters the phenotype of bacterial cell
Ilia_Sergeevich [38]
Simple version:

First, the section with the desirable gene must be identified. Assuming that has already happened, the section of DNA must be excised from the original genome using restriction enzymes, which recognize certain DNA sequences and snip DNA at those sites. DNA ligase is used to "glue" these ends back together. The DNA is inserted into a plasmid (also with restriction enzymes), which would usually contain antibiotic-resistance genes (so they survive in an environment containing the antibiotic, which would also help show if the bacteria have been successfully transformed). 

Then comes the actual transformation process. The bacteria to be transformed are mixed with calcium chloride (which causes the bacteria to be more receptive to the plasmids) and then mixed with the plasmids. The bacterial cells are subjected to a heat shock (the solution is heated and rapidly cooled, e.g. by placing the mixture in a hot water bath and quickly transferred to ice) so they will take up the plasmid (since the temperature change makes the membrane more permeable). The bacteria are placed on a growth medium containing the antibiotic they're resistant to. Only those successfully transformed would survive.
7 0
3 years ago
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