Members of Chondrichthyes differ from members of Osteichthyes by having a ________.
a) jaw
b) bony skeleton
c) cartilaginous skeleton
d) two sets of paired fins
Ans: c) cartilaginous skeleton
You might also like to view...
How many distinct aminoacyl-tRNA synthetases does each cell make?
A. ~1 B. ~20 C. ~60 D. ~120 E. ~180
The cell wall
a. provides physical support for plant cells. b. controls the transport of materials out of the cell. c. replaces the plasma membrane in plant cells. d. is found in all eukaryotes. e. prevents the transport of toxic substances into the plant cells
All of the following pertain to platelets, except
A. they are not whole cells but are pieces of cells. B. they originate from giant multinucleate cells called megakaryocytes. C. they contain hemoglobin to transport oxygen and carbon dioxide. D. they function primarily in hemostasis. E. they function in blood clotting and inflammation.
Which of the following statements about Neisseria meningitis is FALSE?
A) A healthy carrier state can exist. B) It is encapsulated. C) It is typically transmitted by droplet aerosols or direct contact with secretions. D) Its most distinguishing feature is a unique rash. E) It is a gram-positive anaerobe.