Class Aves: General Characteristics
Living species of birds are:
9100
9000
1100
1800
9100
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Gonads are in abdominal region present next to:A. intestine
B. kidney
C. uterus
D. anus
Retina of bird’s eye is:
A. thick
B. thin
C. double layered
D. single layer
A portion that attached feather to bird is called:
A. plumage
B. ectodermis
C. epidermis
D. cuticle
Posterior caudal vertebrae are fused to form a structure called:
A. plumage
B. synsacrum
C. furcula
D. pygostyle
Eggs, laid by female and production of chicks, is called:
A. eggs
B. reproduction
C. clutch
D. pygostyle
Flight muscles are attached to sternum and clavicles and extend to the:
A. humerus
B. femur
C. ulna
D. radius
Largest muscle in birds
A. cardiac muscle
B. flight muscle
C. smooth muscle
D. skin muscle
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