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dlinn [17]
3 years ago
9

What single-celled pathogens are more complex than bacteria and cause diseases like malaria??

Biology
2 answers:
SCORPION-xisa [38]3 years ago
5 0
I believe your answer is Protozoans
Alex787 [66]3 years ago
3 0

Answer:

The correct answer is protozoans.

Explanation:

Protozoans are the single-celled pathogens, which are more composite in comparison to bacteria and results in diseases like malaria. Malaria is the resultant of the protozoan parasite known as Plasmodium. Malaria in human beings is caused by four distinct species of Plasmodium. These are P. falciparum, P. ovale, P. malariae, and P. vivax.  

However, humans in certain cases become infected with the species of Plasmodium, which generally infect animals. The transmission of the malaria parasite takes place by the female Anopheles mosquitoes, which primarily bites between the dusk and dawn.  

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Nicotine increases atherosclerosis by the release of which neurotransmitter?
iVinArrow [24]

Adrenaline 

Nicotine is a substance that is addictive in nature commonly found in cigarette, that affect the nervous system by binding to the receptors in the brain and other part of the body. Atherosclerosis is the loss of elasticity or thickens of arteries walls. However, nicotine increases the release of neurotransmitter adrenaline into the blood which subsequently cause the development of atherosclerosis.

3 0
2 years ago
All cells contain <br> a.dna. <br> b.chloroplasts. <br> c.nuclei. <br> d.contractile vacuoles.
maria [59]
Only eukaryotes contain upper three but all cells contain "Contractile Vacuoles"

In short, Your Answer would be Option D

Hope this helps!
6 0
2 years ago
The cell cycle consists of two main phases: _____.
aev [14]
- - The cell cycle consists of two main phases: interphase and M phase
6 0
3 years ago
A plasmid that encodes resistance to ampicillin and tetracycline is digested with the restriction enzyme PstI, which cuts the pl
nekit [7.7K]

Answer:

tetracycline

Explanation:

When the DNA insert is ligated in Pstl site, the ampicillin gene is disrupted while <em>tetracycline gene is still intact</em>.

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- If the bacterial colony is growth in a medium with only tetracycline, the cells which have incorporated the plasmid will survive. We cannot distinguish between cells with plasmid + insert and plasmid alone.

- If the bacterial colony is growth in a plate with ampicillin + tetracyclin, only the cells with the plasmid without the insert will grow.

Therefore, to ensure that the cells of a bacterial colony contains the plasmid, they have to be seeded in a plate with tetracycline.

4 0
2 years ago
How could different nucleotide sequences result in the same amino acid<br> sequences?
vladimir1956 [14]

Answer:

There is more than one codon that can specify most amino acids, therefore you never know which one was used for a particular protein, unless you can look at the DNA or RNA sequence.

6 0
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