What is an effect of SIV on infected
chimpanzees in the wild?
a. they are unaffected
b. they leave fewer offspring
c. they develop AIDS
d. they become more fit
e. more than one of these is an effect of SIV
B
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Use the following information to answer the following question(s): You wake up one morning feeling slightly under the weather. A close family member enthusiastically suggests that you take some Echinacea, an herb commonly used as a cold remedy. You then decide to design an experiment to test Echinacea and see if this claim is true. You think, "If taken at the beginning of a cold, Echinacea will reduce cold symptoms."You decide to test the effects of Echinacea on 100 people who are experiencing similar cold symptoms. Which of the following groups would represent an appropriate control in your experiment?
A. 100 sick people given tablets similar to Echinacea but with no herb B. One healthy person given Echinacea tablets C. One sick person given Echinacea tablets D. 100 healthy people given tablets similar to Echinacea but with no herb
The mutation frequency is the ratio of the number of mutant alleles to the total number of alleles in a given population
Indicate whether the statement is true or false
A fisheries biologist tells you she is studying a cohort of salmon returning to their birth river. What can you infer about those salmon?
A. They are iteroparous. B. Most of them are one to three years old. C. They are the same age. D. They have a uniform distribution. E. They have a Type II survivorship curve.
A newly discovered prokaryote produces a compound with promising antimicrobial effects. Devise a set of tests to determine whether the antimicrobial is broad or narrow spectrum and bactericidal or bacteriostatic
What will be an ideal response?