Which of the following indicates a poorly designed study?
A) a control group
B) variables were controlled
C) bias
D) follow-up studies
Answer: C
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Bread molds are most commonly associated with which of the following diseases?
A) thrush B) tinea versicolor C) vaginitis D) zygomycosis
Four of the following are components of the appendicular skeleton. Which one is the exception?
a. arm bones b. collarbones c. finger bones d. ribs e. leg bones
An energy drink that is marketed towards athletes promises to boost endurance, decrease muscle fatigue, and promote recovery. It contains caffeine, B vitamins, taurine, malic acid, and phenylalanine. Is this claim plausible?
A. No. These substances have not been shown to alter human physiology in any way. B. Yes. These substances have been shown to have benefits including increased athletic performance, increased energy, and the production of proteins in the body.
What is another term for an identifiable structure known as the microtubule organizing centre (MTOC) of an animal cell?
a. a cell plate b. a centrosome c. a kinetochore d. a centromere