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Complete Question
There were 100 new cases of syphilis last year in a given population of 100,000 people. At that time, 500 people in this population already had syphilis. The incidence of syphilis in this population is __________.
a. 100 per 100,000
b. 500 per 100,000
c. 1000 per 100,000
d. 5000 per 100,000
Answer:
a. 100 per 100,000
Explanation:
Incidence rate of a population can be defined as the rate at which an disease occurs in a population.
The incidence of a population is calculated as
The number of new cases ÷ The population of the people
From the above question,
The number of new cases = 100
The population of the people = 100,000
The incidence = 100 ÷ 100,000
The incidence of syphilis in the population is 100 per 100,000
A dichotomous key is two paired sentences that have contrasting characteristics. That's all i know
Well it's impossible for different population to have the same name.
So I would say this for the answer.
One population can have the same name.
Answer:
Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel.
He got to that conclusion like this: Regarding qualitative tests, he saw that no protein was present but that DNA was present. The chemical analysis showed that phosphorus was present in DNA not in protein. Talking about enzyme tests he saw that transformation did not happen when they added enzymes to the DNA.
Explanation:
Qualitative chemical and catalyst tests helped Avery determine DNA because the remodeling principle by conducting a series of tests to search out if the remodeling principle was DNA or a macromolecule and therefore the result's that no macromolecule was present however that DNA was present.
Although varied scientists engaged in diplococcus analysis throughout the primary 1/2 the 20th century, 2 of those researchers vie a particularly vital role within the course of events that junction rectifier to the invention of deoxyribonucleic acid because of the hereditary material. One in all these people was Oswald Avery.