Match each poikilothermic vertebrate species listed on the left with its corresponding anatomical and physiological adaptation profile on the right.
- Tilapia zilliiTerminal mouth, operculum covering gill slits, cycloid scales, and a two-chambered heart with single-circuit blood circulation.
- Bufo regularisSmooth scaleless skin, metamorphosis from a larval two-chambered heart to an adult three-chambered heart, and dual respiratory surfaces (cutaneous and pulmonary).
- Agama agamaDry epidermal scales, three-chambered heart with an incomplete inter-ventricular septum, excretion of uric acid, and cleidoic eggs.
- Sphyrna lewiniVentral mouth, 5–7 exposed gill slits lacking an operculum, placoid scales, and high physiological retention of urea for osmoregulation.
Answer
Tilapia zillii matches the profile with a terminal mouth, operculum, cycloid scales, and a two-chambered single-circuit heart. Bufo regularis matches the profile with smooth scaleless skin, metamorphosis to a three-chambered heart, and dual cutaneous/pulmonary respiration. Agama agama matches the profile with dry epidermal scales, an incomplete inter-ventricular septum, uric acid excretion, and cleidoic eggs. Sphyrna lewini matches the profile with a ventral mouth, exposed gill slits, placoid scales, and osmoregulatory urea retention.
Each poikilothermic vertebrate is paired with its definitive class-level trait profile: Tilapia zillii (bony fish) has an operculum and cycloid scales; Bufo regularis (amphibian) has moist scaleless skin and undergoes cardiac/respiratory metamorphosis; Agama agama (reptile) has dry epidermal scales, an incomplete ventricular septum, and uricotelic excretion; Sphyrna lewini (cartilaginous fish) has a ventral mouth, exposed gill slits, placoid scales, and urea retention.
Step-by-Step Solution
Key Concept
Comparative anatomical, circulatory, and physiological adaptations across poikilothermic vertebrate classes (Osteichthyes, Chondrichthyes, Amphibia, and Reptilia).
Estimated Time:2m 0s