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Rasek [7]
3 years ago
6

The bubonic plague, also called the Black Death, killed about 200 million people in the 1300s. The disease is caused by a bacter

ium, and it still persists in some areas of the world. Research the bubonic plague using credible websites and explain the role microbiologists play in researching and treating the disease.
Biology
2 answers:
dexar [7]3 years ago
5 0

Answer: Plato Answer

Explanation:

Microbiologist identified the bacteria that cause the disease, and they also played a role in discovering how it evolved. After analyzing bacteria from samples of people who died from the disease, microbiologist determined that the bacteria had key genetic mutations that made it so deadly to humans. Bubonic plague still occurs around the globe, including in some areas of the Unites States. Microbiologists helped develop the antibiotics now used to treat it.

Cerrena [4.2K]3 years ago
4 0

At the end of the 19th century, The French biologist Alexandre Yersin discovered the germ Yersina pestis. Yersina pestis spread the "Black Death". With the help of modern microbiologist's study with a namatode (C. elegans), genes that may play a part in the transmission of plague have been identified. Along with this knowledge, the microbiologists understood that the bacillus travelled from person to person through the air and from bites from infected fleas and rats. According to biologist Paul-Louis Simond, the bacteria blocks the digestive tracts of the fleas and stimulates them to bite and people repeatedly, injecting and spreading the bacteria. The bacteria hitchhike in immune cells in lymph nodes and the infection begins and transmits to others. Antibiotics are then chosen to fight the bacteria.

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Tresset [83]

Answer: variation, reproduction, and heritability.

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All species must reproduce to survive. Organisms cannot live forever, so they must reproduce to allow their species to continue to live on. Reproduction is nature's way of allowing a species to survive.

Higher heritability means the trait evolves faster; fewer generations are required for the trait to increase to the same degree as a trait with lower heritability. For this reason, genetic correlation and heritability show how a trait might change from one generation to the next and into the future.

4 0
2 years ago
In a certain population, the allele causing sickle cell anemia has an allele frequency of 0.2. if the population is in genetic e
alexandr1967 [171]
The answer is "0.64".
8 0
4 years ago
Mendel knew that the variations in the offspring generations resulted from his experiments because he
sasho [114]

Mendel was able to attribute the variation observed in the offspring of his experiment to the controlled fertilization process.

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More on Mendel's experiments can be found here: brainly.com/question/3186121?referrer=searchResults

6 0
2 years ago
(WILL GIVE BRAINLIST) A student investigated the effect of root space on plant growth. The student grew two groups of plants of
My name is Ann [436]

Answer:

Throughout the experiment at hand, the student will likely find that root space does indeed effect the length to which plantswill grow. Although I could not locate the table online, I will offer a general hypothesis for what the experiment will conclude. The student is testing the effects of root space on the way plants grow. The students experiment is well designed, keeping many variables constant and making sure that the amount of root spaceis the only difference between the plantsensures the accuracy of the experiment. Since we know that the experiment is well designed we are able to directly infer the effects of root space limitations without having to account for other factors. We can assume that the limited root space will in turn limit the extent to which a plant can grow. This is because plants need larger and deeper roots to support extended growth. Therefore, the plants in group Bwill grow smaller than those in group A.

Explanation:

mark me brainliest!!

8 0
3 years ago
A serious and potentially deadly medical condition with symptoms that include psychotic behavior, elevated temperature, and an e
gayaneshka [121]

your answer is excited delirium.

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