Higher Secondary level Zoology kernels for your kind perusal.
2. The intensity of sound is measured using the scale -- a) decibel b] Hertz c] Mega Hertz d] Meter
3. The lever system formed by the ear ossicles multiplies the force -- a] 3.3 times b] 2.3 times c) 1.3 times d] 0.3 times
4. Permissible level (recognized by the industrial noise survey of India) for noise is -- a] 10 dB to 21 dB b] 21 dB to 40 dB c] 41 dB to 80 dB d) 81dB to 120dB
5. Loud noises ranges above -- a] 40 dB b] 70dB c] 100 dB d) 130dB
6. The skin is a major organ of the body forming ____ of its total mass a] 2 % b] 4% c) 8 % d] 10%
7. The skin is having an area between ____ . a] 0.5 - 1.0 m2 b) 1.1 - 2.2 m2 c] 2.5 - 4.4 m2 d] 5 - 10 m2
8. ________ glands are found in the regions like axilla, areola, pubis, scrotum and perianal regions. a) Apocrine b] Merocrine c] ceruminous d] Sebaceous
9. Melanocytes possess the enzyme tyrosinase necessary for the synthesis of _______ from the amino acid called tyrosine. a] Maltose b) Melanin. c] Photopsin d] Cholesterol
10. The extreme degree of generalized hypo pigmentation leads to -- a] Melanoma b] Leucoderma c) Albinism d] Dermatitis
11. An example for localized hypopigmentation -- a] Albinism b] Eczema c] Skin lesions d) Vitiligo
12. Partial albinism causes -- a] melanoma b] Vitiligo c) Leucoderma d] Dermatitis
13. Excessive exposure to Ultra Violet rays can cause - a] vomitting b) skin cancer c] colour change d] redness of eyes
14. Rag weed plant causes allergic responses and results in -- a) contact dermatitis b] vitiligo c] leprosy d] all the above
15. The cochlear portion of the labyrinth is a tubule coiled _____ times. a] 1.75 b) 2.75 c] 3.75 d] 4
Score = Correct answers:
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