Refer to the cladogram below. Which synapomorphy is common to the lizard and rabbit but not the salmon?
A. Notochord.
B. Vertebrae.
C. Tetrapod locomotion.
D. Mammary glands.
C. Tetrapod locomotion.
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Which bond is weakest?
a. ionic b. double covalent c. polar covalent d. nonpolar covalent e. hydrogen
Honeybees convey information to other worker bees
in the hive about all EXCEPT the __________ of a food source. a. direction b. general location c. distance d. abundance e. angle relative to the sun
Which of the following would NOT be an action of the complement system?
a. lysis of a pathogen's membrane b. trapping of pathogens in tangled protein threads c. marking of pathogens for destruction by macrophages d. attraction of phagocytes to the scene of pathogen invasion e. membrane attack complexes
Each of these is a mechanism of antimicrobial resistance by microorganism except
A. enhancement of metabolic pathways B. decreased uptake C. alteration of target site D. enzyme production