Placental mammals appeared during the _____ period
What will be an ideal response?
Tertiary
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Which mechanism is the least likely explanation for high chromosome numbers in ferns?
a. dysploidy b. polyploidy c. increased independent assortment d. increased recombination rates e. homospory
Arsenic is a poison that binds to a molecule needed to build acetyl CoA. Based on this information, which part of cellular respiration would be stopped if arsenic were ingested?
A) glycolysis B) citric acid cycle C) electron transport chain D) ATP synthase
Which of the following is a member of the Flaviviridae that is NOT an arbovirus?
A) eastern equine encephalitis virus B) dengue virus C) hepatitis C virus D) hepatitis E virus E) West Nile virus
Tuberculosis is caused by a
A. fungus. B. bacterium. C. worm. D. protist. E. virus.