Which of thfollowing is NOT includein adaptation for flight in birds?
A) sound production
B) lightweight bones
C) feathers
D) efficient respiration
E) four-chambered heart
Correct Answer:
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Q85: Which of thfollowing types of mammals occur
Q86: Which of thfollowing groups werfirst to havan
Q87: Amphibians arcompletely dependent on an aquatic environment
Q88: Thvertebratlung first appearein which organism?
A)fishes
B)amphibians
C)reptiles
D)birds
E)mammals
Q89: In thlatCarboniferous, reptiles werablto movinto new habitats
Q91: Which of thfollowing is NOT a featurthat
Q92: Thvertebratjaw first appearein
A)ancient fishes.
B)amphibians.
C)reptiles.
D)birds.
E)mammals.
Q93: Amphibians most likely evolvefrom
A)ray-finned fishes.
B)fishes with lobed
Q94: All vertebrates may have
A)a brain.
B)a closed circulatory
Q95: Which of thfollowing animals is NOT an
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