Animales complejos: anfibios

Amphibians are ectothermic vertebrates that breathe through both lungs and skin, which is why they thrive in moist environments. They begin life in water, often as larvae with gills, and undergo metamorphosis to develop structures for living on land. The majority of amphibians are frogs or toads.

Why do amphibians prefer to live in moist environments?

• They need to avoid predators.

• They can only breathe through their lungs.

• They need moisture to keep their skin hydrated.

• They are attracted to the color green.

Which of the following is NOT a way amphibians breathe?

• Through their gills

• Through their feathers

• Through their lungs

• Through their skin

What is a key characteristic of amphibians during their early life stage?

• They have feathers.

• They have gills and live in water.

• They are born with fully developed lungs.

• They can fly.

What is the process called when an amphibian changes shape as it grows?

• Transpiration

• Respiration

• Metamorphosis

• Photosynthesis

What percentage of amphibians are frogs or toads?

• 50%

• 70%

• 90%

• 100%