#1
Which of the following is not a characteristic of vertebrates?
Bilateral symmetry
Endoskeleton
Exoskeleton
Dorsal hollow nerve cord
#2
What is the primary function of the vertebral column?
Respiration
Protection of internal organs
Digestion
Reproduction
#3
Which of the following is not a characteristic of the circulatory system in vertebrates?
Closed circulatory system
Heart with multiple chambers
Presence of hemoglobin in blood
Absence of blood vessels
#4
In which vertebrate group would you find an amniotic egg?
Reptiles
Fishes
Amphibians
Birds
#5
Which of the following is not a feature of the mammalian integumentary system?
Hair follicles
Feathers
Sebaceous glands
Sweat glands
#6
Which of the following is a unique characteristic of mammals among vertebrates?
Feathers
Lungs
Mammary glands
Cold-bloodedness
#7
What is the function of the cerebellum in the vertebrate brain?
Regulation of body temperature
Coordination of movement
Processing visual information
Hormone secretion
#8
What is the function of the swim bladder in bony fish?
Excretion of waste
Oxygen storage
Buoyancy control
Digestion
#9
Which structure in birds is analogous to the mammalian diaphragm?
Gills
Air sacs
Bronchi
Cloaca
#10
Which of the following is a characteristic of endothermic vertebrates?
Dependence on external heat sources for body temperature regulation
Ability to maintain a constant internal body temperature
Presence of a three-chambered heart
Development within an amniotic egg
#11
Which of the following vertebrates is ectothermic?
#12
Which of the following is a characteristic feature of the class Chondrichthyes?
Presence of gills
Bony skeleton
Cartilaginous endoskeleton
Amniotic egg
#13
Which of the following is a characteristic feature of the class Aves?
Presence of mammary glands
Feathers
Ectothermy
Amphibious lifestyle
#14
Which of the following is a characteristic feature of the class Amphibia?
Feathers
Presence of mammary glands
Development within an amniotic egg
Moist skin for respiration
#15
Which of the following is a characteristic feature of the class Mammalia?
Presence of scales
Cold-bloodedness
Development within an amniotic egg
Presence of mammary glands