All of the following teeth are found in adult vertebrates except
A. precanines.
B. molars.
C. incisors.
D. premolars.
E. canines.
A. precanines.
Biology & Microbiology
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Which of the following can function in signal transduction in plants?
I) calcium ions II) nonrandom mutations III) receptor proteins IV) autochrome V) secondary messengers A) only I, III, and IV B) only I, II, and V C) only I, III, and V D) only II and IV E) only II, III, and V
Biology & Microbiology
For the lactose operon, lactose is a(n):
A. inducer. B. promoter. C. activator. D. repressor. E. operator.
Biology & Microbiology
In this figure, which of the following are composed primarily of proteins?
a. A and B b. B and C c. B and D d. A and D
Biology & Microbiology
Telomere shortening is a problem in which types of cells?
A) only prokaryotic cells B) only eukaryotic cells C) cells in prokaryotes and eukaryotes
Biology & Microbiology