MCQ
Industrial melanism is an example of
- ADefensive adaptation of skin against ultraviolet radiations
- BDrug resistance
- CDarkening of skin due to smoke from industries
- ✓Protective resemblance with the surrounding
✓
Answer
Correct option: D.
Protective resemblance with the surrounding
d
(d)Industrial melanism is an adaptation where the moths living in the industrial areas develop melanin pigments to match their body to the soot covered surroundings.
(d)Industrial melanism is an adaptation where the moths living in the industrial areas develop melanin pigments to match their body to the soot covered surroundings.
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(i) They do not exhibit any striation and are smooth in appearance. Hence, they are called non- striated muscle.
(ii) They have a striped appearance under the microscope and hence are called striated muscles.
(iii) As their activities are under the voluntary control of the nervous system, they are known as voluntary muscles too.
(iv) Their activities are not under the voluntary control of the nervous system and are therefore known as involuntary muscles.
(v) They are located in the inner walls of hollow visceral organs of the body like the alimentary canal, reproductive tract, etc.
(vi) They are primarily involved in locomotory actions and changes of body postures.
(vii) They assist in the transportation of food through the digestive tract and gametes through the genital tract.