A. Blood
B. Gases
C. Urine
D. Water
Amphibians
Amphibians
A. Tympanic
B. Middle ear
C. Inner ear
D. All of these
A. Food
B. Locomotion
C. Breathing
D. Ciculation
A. Absortion
B. Storage of water
C. Gas exchange
D. All of these
A. internal
B. External
C. Both A,B
D. None of these
A. Moist
B. Prevent drying
C. Dry
D. Both A, B
A. Producer
B. Decomposer
C. Carnivores
D. Herbivores
A. Mate
B. Detecting
C. Food
D. All of these
A. Ammonia
B. Urea
C. Both A,B
D. None of these
A. Internal
B. External
C. Both A,B
D. None of these