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
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$I.$ pumping of $C a^{2+i i}$ ions in sarcoplasmic reticulum
$II.$ presence of $ATP$
$III.$ confirmational changes in troponin and masking the actin filament
Option containing correct statement is
| Genus name | Two characters | Class/Phylum | |
| $(a)$ | Ascaris | $(i)$ Body segmented | Annelida |
| $(ii)$ Males and females distinct | |||
| $(b)$ | Salamandra | $(i)$ A tympanum represents ear | Amphibia |
| $(ii)$ Fertilization is external | |||
| $(c)$ | Pteropus | $(i)$ Skin possesses | Mammalia |
| $(ii)$ Oviparous | |||
| $(d)$ | Aurelia | $(i)$ Cnidoblasts | Coelenterata |
| $(ii)$ Organ level of organization |
$I$. reptiles $II$, amphibians
$III$. birds $IV$. mammals
The correct option with appropriate choices is