List the adaptations that distinguish reptiles from amphibians and help reptiles adapt to life i

step 1 Hi, welcome. The purpose of this video is to talk about the difference between reptiles and amph

List the adaptations that distinguish reptiles from...

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Key Concepts

Amniotic Egg

The amniotic egg, characterized by its protective, water-impermeable shell and extra-embryonic membranes, is a key adaptation that allows reproduction away from water. This structure provides a stable environment for the developing embryo and prevents desiccation, a critical feature for survival in dry terrestrial habitats.

Keratinized, Impermeable Skin

Reptiles have skin covered in keratinized scales, which serve as an effective barrier against water loss. Unlike the moist, permeable skin of amphibians, the dry and scaly skin of reptiles minimizes evaporation, enabling better water retention in arid environments.

Efficient Excretory Systems

Reptiles possess kidneys that efficiently conserve water by excreting nitrogenous wastes in the form of uric acid, which requires minimal water to be eliminated from the body. This adaptation is essential for life in environments where water is scarce.

Internal Fertilization

Internal fertilization in reptiles ensures that fertilization occurs within the body, protecting gametes and embryos from external drying conditions. This reproductive strategy further facilitates their adaptation to a terrestrial lifestyle where water is limited.

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