CSS :: Integumentary System
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| 21. |
Nails, hoofs and horns are examples of: |
| A. |
Bone |
B. |
Cartilage |
| C. |
Connective tissue |
D. |
Keratinized derivatives |
Answer: Option D
Explanation:
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| 22. |
Hairs in mammals are derivatives of: |
| A. |
Dermis |
B. |
Epidermis |
| C. |
Mesodermis |
D. |
Endodermis |
Answer: Option A
Explanation:
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| 23. |
Colouration in frog and other amphibians is due to: |
| A. |
Chromatophores |
B. |
Irridescence of skin |
| C. |
Presence of pigment in epidermal cells |
D. |
None of these |
Answer: Option A
Explanation:
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| 24. |
Elephant is inhabitant of hot climate. This is suggested by: |
| A. |
Its huge size |
B. |
Almost hairless skin |
| C. |
Fleshy feet |
D. |
Small eyes |
Answer: Option B
Explanation:
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| 25. |
Maintenance of high body temperature helps mammals in carrying out fast: |
| A. |
Respiration |
B. |
Reproduction |
| C. |
Locomotion |
D. |
Digestion |
Answer: Option A
Explanation:
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| 26. |
Whale is warm-blooded animal but survives in cold seas. The main device for keeping the animal warm in thick: |
| A. |
Blubber |
B. |
Pelage |
| C. |
Muscles |
D. |
Bllod vessels |
Answer: Option A
Explanation:
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| 27. |
Pelage is the term given to: |
| A. |
Hairy covering of skin |
B. |
Skin only |
| C. |
Muscles below dermis |
D. |
None of these |
Answer: Option A
Explanation:
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| 28. |
The body colour in mammals is determined by: |
| A. |
Melanin and melanoid pigments |
B. |
Carotene |
| C. |
Haemoglobin and oxyhaemoglobin |
D. |
All of these |
Answer: Option D
Explanation:
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| 29. |
In which of the strata of epidermis of mammals the pigment carotene is found: |
| A. |
Strarum comeum |
B. |
Stratum malpighi |
| C. |
Stratum lucidum |
D. |
None of these |
Answer: Option A
Explanation:
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| 30. |
Mclanin is present generally in which of the following strate of mammalian epidermis: |
| A. |
Stratum corneum |
B. |
Stratum malpighi |
| C. |
Stratum lucidum |
D. |
None of these |
Answer: Option B
Explanation:
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