Biology (Raven), 9th Edition

Chapter 26: The Tree of Life

Pre-Test

1
Which of the following is NOT true of Miller and Urey's experiments?
A)They assembled a reducing atmosphere excluding O2.
B)They used electrodes to discharge sparks to simulate lightning.
C)They placed cosmic dust into ocean water and heated it to 100°C.
D)Glycine and alanine were produced.
E)Within a week, 15% of CH4 was converted into other carbon compounds.
2
In the early 1700s, the classification system used was
A)polynomial.
B)pentanomial.
C)binomial.
D)trinomial.
E)tetranomial.
3
The oldest level of taxonomic classification is
A)class.
B)family.
C)genus.
D)phylum.
E)species.
4
Which of the following is NOT a characteristic of organisms in the Archaea domain?
A)They have identifiable signature sequences in their DNA.
B)Genes that encode ribosomal RNAs show a close relationship between the bacteria and the Archaea.
C)Lipids in the cell membranes have a branched structure.
D)They can live in extreme environments.
E)They have introns present in some of their genes.
5
Chloroplasts are energy-harvesting organelles derived from which of the following?
A)Halobacteria
B)Cyanobacteria
C)Flavobacteria
D)Purple nonsulfur bacteria
E)Gram-positive bacteria
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