Amphibians
Amphibians are a class of cold-blooded vertebrates that include frogs, toads, salamanders, newts, and caecilians. They are known for their unique life cycle, where they typically start as aquatic larvae and then transform into terrestrial adults.
Characteristics of Amphibians
- Amphibians have moist, permeable skin that allows for gas exchange.
- They undergo metamorphosis, transitioning from aquatic larvae to terrestrial adults.
- Most amphibians lay eggs in water, and their larvae are aquatic.
- They have a three-chambered heart.
- Amphibians typically have a larval stage with gills and an adult stage with lungs.
Study Guide
Life Cycle
Describe the life cycle of an amphibian, including the stages of egg, larva, and adult. Explain the process of metamorphosis and the adaptations that allow amphibians to live in both aquatic and terrestrial environments.
Anatomy and Physiology
Discuss the unique features of amphibian anatomy, such as their skin, respiratory system, and circulatory system. Explain how these adaptations help amphibians survive in diverse habitats.
Ecology and Conservation
Explore the ecological role of amphibians in their ecosystems and the current conservation challenges they face. Investigate the impact of habitat loss, pollution, and disease on amphibian populations, and propose potential conservation strategies.
Amphibian Diversity
Research the different groups of amphibians, including frogs, toads, salamanders, newts, and caecilians. Compare and contrast their physical characteristics, habitats, and behavior.
