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IceJOKER [234]
4 years ago
5

humans developed antibiotics to fight bacterial infections. however, some antibiotics are no longer effective in killing the bac

teria they once killed. how does the theory of evolution explain this?
Biology
2 answers:
andrezito [222]4 years ago
5 0
After a certain period of time, diseases and other sicknesses evolve along with humans, making the antibiotics nearly or completely ineffective. For example, if you took one tylenol when you have a cold, it may not be as effective the next day or so and would need to double the dose. Obviously it will all depend on the illness, and what stage it is in, and the strength of the medication. Also, at one point a vaccine for rabies might need an advanced formula because it might have evolved in animals. The possibilities are endless.
Juli2301 [7.4K]4 years ago
3 0

The answers are

1.c

2.b

3.a

4.b

5.d

6.d

7.c

8.d

9.d

10.b

hope this help can i get a brainliest please

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Select the correct answer from each drop-down menu. some vitamins are mostly found in animal-based foods, while some vitamins ar
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The best source of vitamin c is strawberries.

Fish is naturally rich in vitamin b12.

<h3>What is vitamin?</h3>

Vitamins are essential substance and mostly plant base substances that needed in small quantities and are consumed by man to improve the healthy wellbeing.

Vitamins can be water soluble or fat soluble.

Therefore, The best source of vitamin c is strawberries.

Fish is naturally rich in vitamin b12.

The question is incomplete as the options are not given, below are the options below.

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Learn more about vitamins below.

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3 0
2 years ago
Mr. Harrison is an 82 year-old man bedridden gentleman who has discovered a new interest in learning about his body. While being
Marta_Voda [28]

Answer:

He meant that the supporting cells form a insulating coat on the nerve fibre called myelin seath. The myelin Sheath act similar to the rubber coating of household wiring because it electrically insulates the nerve fibre and speeds of conduction of nerve impulse..

Explanation:

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  • Out of six types of glial cells, four are located in the central nervous system (CNS) and they are;astrocytes, oligodendrocytes, ependymal cells and microglia.
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  • Among these , the oligodendrocytes of the CNS and Schwann cells of the PNS  forms myelin sheath on the axons of the nerve cell that act similar to the rubber coating on the household wiring.
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3 years ago
What is not a dissolved gas present in the ocean
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The correct answer is option B, hydrogen.

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However, hydrogen is not present, and if found it is found in minute concentration. Of the gases, nitrogen is the most abundant gas found in seawater, while oxygen is the second most abundant, and carbon dioxide is the most soluble gas, and one of the various constituents, which influences the pH balance of the ocean.  


5 0
3 years ago
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