Under identical atmospheric conditions, freshwater _____
A) has more oxygen than seawater
B) has less oxygen than seawater
C) can hold 10-40 times more carbon dioxide than air
D) can hold 10-40 times more oxygen than air
A
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Long-term exposure to cold can alter metabolism and
encourage __________ in which brown adipose tissue produces heat. Fill in the blank(s) with the appropriate word(s).
Down syndrome results from which of the following chromosomal abnormalities?
a) a truncated copy of chromosome 3 b) all or part of a third copy of chromosome 21 c) translocation of genetic material on chromosome 21 d) the absence of a second copy of chromosome 10 e) two Y chromosomes
What would be a set of anticipated results from a "Lederberg" experiment?
A. Total number of colonies on a plate: 1500 Total number of resistant colonies on replica plate with T1: 150 B. Total number of colonies on a plate: 1500 Total number of resistant colonies on replica plate with T1: 1500 C. Total number of colonies on a plate: 500 Total number of resistant colonies on replica plate with T1: 1500 D. Total number of colonies on a plate: 1500 Total number of resistant colonies on replica plate with T1: 0
In some attine ants, various species of actinobacteria
a. are used as a food source. b. produce vitamins in the ant gut. c. are used to produce antifungals that protect the ant’s fungal gardens. d. are highly pathogenic, resulting in the destruction of entire ant colonies.