The physiological activity of the brain can be visualized using:
A) PET
B) CT
C) x-ray
D) electron microscopy
Ans: A) PET
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One day after a biology class four of your friends argue about the difference between phylogeny and systematics. Which friend is right?
A. Friend A states that systematics and phylogenies are really the same, one is more recent than the other, but basically they are the same. B. Friend B says that systematics is the same as cladistics and cladistics is reconstructing clades, which ultimately lead to the development of phylogenies. C. Friend C argues that systematics is the actual collecting and cataloguing of specimens into museums that can be used later by scientists to construct clades and phylogenies. D. Friend D says that the way she remembers is that systematics is the reconstruction and study of phylogenies.
Pathogenic organisms are transmitted through a variety of routes including all of the following except:
a. eating. b. sexual contact. c. contaminated food. d. respiratory droplets.
All marsupial mammals have a marsupiam
a. true b. false
Exercise 28 covered the most probable number procedure and exercise 29 covered the membrane filtration method. Imagine you were given a water sample with a large amount of debris. Which method would you choose to test this water sample?
A) The most probable number procedure B) The membrane filtration method