Which group of character of a whale justifies its inclusion in the class mammalia?
A. Lungs, 4 chambered heart, kidneys
B. Lungs, 4 chambered heart vertebral column
C. Hairs, mammary glands, viviparity
D. Gills, fins, viviparity
Answer:C
Which group of character of a whale justifies its inclusion in the class mammalia?
A. Lungs, 4 chambered heart, kidneys B. Lungs, 4 chambered heart vertebral column C. Hairs, mammary glands, viviparity D. Gills, fins, viviparity