The first level of inquiry in making a systematic
survey of biodiversity is carried out
a. at the ecoregion level.
b. among the riparian zones.
c. in hot spots.
d. at the regional research station.
e. on a global scale.
Answer: c
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Coccolithophores use ________ for a method of swimming
a. flagellates b. cilia c. appendages d. jet propulsion
A population of 1,000 individuals with a per
capita growth rate of 1.0 per year in an environment with unlimited resources will number ____ four years later.
a. 1,000 b. 1,400 c. 4,000 d. 16,000 e. 160,000
Anaphylactic shock is caused by a(n) ____
a. overproduction of antihistamine b. overproduction of histamines and prostaglandins c. allergen that escapes detection by the immune system d. cytokine storm e. contact allergies
Why was it important in the studies of Beadle and Tatum that Neurospora is haploid?
a. Because it is easier to grow haploid molds in the laboratory. b. Because haploid molds have simpler nutritional requirements than do diploid molds. c. Because a mutation that arises is not masked by a normal allele on a homologous chromosome. d. Because haploid Neurospora will always mutate. e. Because diploid Neurospora will always mutate.