Peptidoglycan is a unique macromolecule found in bacterial
A. inclusions.
B. capsules.
C. slime layers.
D. cell walls.
E. cell membranes.
Answer: D
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A series of changes in a single lineage of species, without branching to create additional species, is
called
a. cladogenesis. b. paedomorphosis. c. punctuated equilibrium. d. adaptive radiation. e. anagenesis.
Atomic isotopes
a. are electrically unbalanced. b. behave the same chemically and physically but differ biologically from other isotopes. c. are the same physically and biologically but differ from other isotopes chemically. d. have varying numbers of neutrons. e. are produced when substances are exposed to radiation
Homeostasis is ultimately regulated by:
a. the brain. b. the endocrine glands. c. the oil glands. d. the exocrine glands. e. the circulatory system
Which of the following types of cloning vector can carry the largest amount of foreign DNA?
A. Bacteriophage B. Bacterial artificial chromosome C. Plasmid D. Cosmid