Author: Study Clue

In reptiles, the waterproofing of skin is mainly due to A Dermal mucus glands B Ciliated epidermis C Stratum corneum

In reptiles, scales are mainly derived from A Dermal denticles B Muscle layers C Epidermal folds D Nerve tissue Explanation

Which layer mainly produces reptile keratin scales? A Dermis B Hypodermis C Epidermis D Peritoneum Explanation Reptile scales are epidermal

Which skin structure forms reptile scales? A Dermal bone plates B Mucus gland secretion C Epidermal keratin layer D Cartilage

Which reptile skin feature reduces water loss on land? A Slimy mucus skin B Thin permeable skin C Dry keratin

In frogs, the spiral valve inside conus arteriosus mainly helps A Digest food faster B Store bile salts C Separate

Which amphibian skin layer becomes more keratinized in adult toads A Dermis inner layer B Muscle layer C Bone layer

Which larval organ is lost when a tadpole becomes an adult frog A Tympanum disc B External gills C Vocal

Which adult frog feature mainly supports jumping on land A Strong hind limbs B Long tail fin C Sucker mouth

Which feature best supports an amphibian’s “dual life” habit A Water and land life B Only desert living C Only