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Examine the front and hind limbs, looking for specialized features like webbed feet for swimming and powerful muscles for jumping.

Based on the 7th-grade biology curriculum by , Laboratory Work No. 8 typically focuses on studying representatives of the class Amphibia (Amphibians) .

Лабораторные работы по биологии 7 класс - Инфоурок

Amphibians exhibit "mixed" characteristics: they possess lungs for air-breathing but still rely heavily on moist skin for gas exchange.

Abeka 7th Grade Science, Section 8.4 Bold Terms Flashcards - Quizlet

To examine the structural features of amphibians and identify adaptations to their dual environment (aquatic and terrestrial). Equipment: Live or preserved specimens (e.g., frogs or newts). Wet preparations or models. Magnifying glass. Core Observation Tasks:

Their limb structure and placement allow for movement on land, while webbed feet and a streamlined body make them efficient swimmers.