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a) In explaining their findings, the authors have ignored a major threat to the validity of their estimates of exposure. Explain and discuss this error.
b)Specify the alternative study design should overcome this problem and why?
c) Rate the study's internal validity; low, medium or high. Explain this systematically in relation to the data and other evidence presented in this paper.
d) To whom may the results be generalised? Describe your answer briefly.
Mrs. Smith and Mrs. Jones had baby girls same day in same hospital. Mrs. Smith named her baby Shirley and Mrs. Jones named her baby Jane.
A man and woman are both of normal pigmentation and have a one child out of three who is albino (without melanin pigmentation). Albinism is an autosomal (not sex-linked) recessive trait. What are the genotypes of albino's parents.
A rapid beat of heart over 100 beats per minute is known as ______. A beat slower than 60 is called ______. Lack of appropriate blood to the heart is known as ______. Rapid shuddering of the heart muscle is called ______.
What makes the principle scientifically useful or a positive thing for science? What makes a principle not methodically useful, or even a negative thing for science.
Explain the epidemiological attributes of this episode. In which special circumstances can cross-sectional surveys be utilized to test the hypotheses? In your answer explain briefly the characteristics of the cross-sectional study.
Using information provided, what is the hydrogen/helium content inside a star that is the approximate age of our sun. what aspects are consequences of the evolutionary history of animals you are considering.
After some week's plants that were transplanted into nonsterile soil exhibited a much higher growth rate compared to the plants transplanted into sterile soil. What would be the most likely explanation for this result.
The Kingdom Fungi contains members with saprobic, parasitic and mutualistic modes of nutritiom. How do these types of nutrition relate to the ecological and economiv importace of this group.
Many infected animals are induced by the parasitic microsporidians to develop huge cells, known as xenomas, which are full of spores. Given their large size, what must be true of the xenomas.
The number of bacteria in saliva samples was determined by collecting the saliva, making serial dilutions, and inoculating nutrient agar through pour plate method. The plates were incubated aerobically for 48 hours at 37C.
Why can prakaryotes quickly re infect a patient if they are not wiped out? How may this result in the evolution of drug resistant pathogens.
List and express at least three prokaryotic cellular features that might be targeted in this way to inhibit or kill a bacterial pathogen.
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