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Comparative Anatomy Quiz 3

Terms in this set (10)

In antlers, the velvet is formed by the:
A) epidermis
B) dermis
C) neural crest cells
D) endoderm
E) mesoderm
epidermis
The horns of rhinos
A) lack a bony core
B) are covered in a velvety layer
C) are shed annually
D) lack keratin
E) are present in males only
A) lack a bony core
Sebaceous glands, sweat glands and mammary glands are unique to class________
A) Reptilia
B) Amphibia
C) Mammalia
D) Sarcopterygii
E) Chondrichthyes
Mammalia
Feathers and hairs are composed of _______ and derived from the _______
A) Keratin, ectoderm
B) Collagen, endoderm
C) Collagen, mesoderm
D) Keratin, mesoderm
E) Keratin, endoderm
Keratin, ectoderm
The large, plate-like scales of some reptiles are known as________
A) Scutes
B) Osteoderms
C) Ganoid Scales
D) Cosmoid Scales
E) Placoid Scales
Scutes
____________are examples of teleost scales and lack dentin, enamel or vascular bone layer
A) Scutes
B) Osteoderms
C) Placoid Scales
D) Ganoid Scales
E) Cycloid and Ctenoid scales
cycloid and ctenoid scales
The skin of many Chondrichthyes fishes feature__________ scales.
A) Cosmoid
B) Ganoid
C) Ctenoid
D) Cycloid
E) Placoid
placoid
The most common protein in the epidermis is _____________, whereas ____________ is most abundant in the dermis.
A) keratin, collagen
B) collagen, keratin
C) keratin, elastin
D) elastin, collagen
E) actin, myosin
keratin, collagen
In most anamniotes, the surface of the epidermis is covered in _____________.
A) hair
B) keratin
C) collagen
D) mucus
E) sebum
mucous
Developmentally, the epidermis is derived from __________, whereas the dermis is derived from ____________.
A) ectoderm, endoderm
B) ectoderm, mesoderm
C) endoderm, mesoderm
D) endoderm, ectoderm
E) mesoderm, ectoderm
ectoderm, mesoderm
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