Birds anmammals sharwhich of thfollowing characteristics?
A) ectothermy
B) body air
C) lung design
D) four-chambered heart
E) amniotic egg
Correct Answer:
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Q76: Thnotochoris most closely associatewith the
A)nervous system.
B)spinal cord.
C)skeletal
Q77: A water-vascular systethat operates thtubfeet is characteristic
Q78: Which of thfollowing organisms is not an
Q79: Which of thfollowing is a disadvantagof an
Q80: Metamorphosis in arthropods implies a
A)remodeling of body
Q82: Sharks anrays belong to the
A)birds.
B)amphibians.
C)cartilaginous fishes.
D)bony fishes.
E)reptiles.
Q83: In vertebratevolution, thappearancof thvertebral column lemost directly
Q84: A lamprey is lacking
A)a respiratory system.
B)jaws.
C)fins.
D)a respiratory
Q85: Which of thfollowing types of mammals occur
Q86: Which of thfollowing groups werfirst to havan
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