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Alex Ar [27]
4 years ago
14

Which of the following is a contributing reason behind emerging disease?

Biology
1 answer:
nlexa [21]4 years ago
7 0
The best answer is "a" - the overuse of antibiotic. Emerging disease are those whose incidence has increased in the past two decades or threatens to increase in the near future. Such diseases include : 1. Old infections emerging as a result of antimicrobial resistance due to indiscriminate or poor use or over use of antibiotics. 2. New infections resulting from evolution or change of existing organisms. 3. Previously unrecognized infections in areas undergoing ecological transformation 4. Known infections spreading to new geographical areas or population. Antibiotic resistance has been on the rise and is now major concern.
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Conjugation is a very effective process for spreading antibiotic resistance among diverse bacterial populations such as those fo
ololo11 [35]

Answer:

B) Two different species of bacteria can share DNA, including antibiotic-resistance genes, during conjugation.

Explanation:

Conjugation is a process by which bacteria can exchange their genetic material between them. So through conjugation, the antibiotic-resistant gene coded by plasmid can be transferred through sex pilus to another bacteria.

So due to conjugation two different species of bacteria can share DNA which can include antibiotic-resistant genes. Therefore, through conjugation genetic variation and evolution are favored in bacteria. So due to this reason conjugation is a very important process in bacteria to spread antibiotic-resistant genes.

7 0
3 years ago
Smooth muscle is not cross striated because:
stealth61 [152]

Answer:

At a cellular level, smooth muscle functions as an involuntary non-striated muscle. Smooth muscle contains thick and thin filaments that do not arrange into sarcomeres, resulting in a non-striated pattern.

Explanation:

7 0
3 years ago
In dolphins, to have spots on the skin is a recessive trait. One spotted dolphin and one solid gray dolphin have a baby spotted
Kisachek [45]

Answer:

the spotted parent has the genotype ss

Explanation:

we will use s as the letter when describing the spotted trait.

since spotted is recessive, that parents have to have two little s to have the trait. Since the child also has that, we know that they will have the genotype ss.  the child would have to get a little s from both parents, so the solid parent would have Ss, showing as solid, but still having the gene for spots.

7 0
3 years ago
the hawaiian islands were formed by volcanic activity, but they are far from any plate boundaries. explain how this could occur.
zhannawk [14.2K]

Answer:

Hotspots from under the ground

Explanation:

There are three different situations where an volcano can form. A divergent boundary, where two tectonic plates move away from each other, subduction boundary, where one of the tectonic plates moves under the other, and a hotspot. Scientists are not completely sure how hotspots form.

7 0
3 years ago
What event within the food chain might lead to the graph shown below
kotykmax [81]
I can’t see the graph
3 0
3 years ago
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