Which imaging technique detects brain activity by measuring blood flow?
a. fMRI
b. MRI
c. EEG
d. PET scan
e. CAT scan
ANSWER: a
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Most plants would grow best in a soil with ____
a. very small air spaces b. relatively large air spaces c. air spaces filled almost entirely with water d. various sizes of air spaces e. no air spaces
In the U.S., many states passed laws against miscegenation, or marriage between individuals of different races. What
genetically based arguments would you use in support or opposition to such laws?
One difference between a gene mutation and a chromosomal mutation is that
a. A gene mutation affects the DNA of more genes than a chromosomal mutation b. A gene mutation can involve a insertion or deletion, but cannot result in a frameshift c. A chromosomal mutation can change the number of chromosomes in a cell d. A chromosomal mutation is more likely to be passed on to offspring or daughter cells
The process by which a single cell differentiates into a specialized multicellular organism is
A. heredity. B. coordination. C. development. D. multicellularity.