| A | B |
| The three stages in the life cycle of an amphibian | egg, larva, adult |
| The change of body form from larva to adult is called | metamorphosis |
| An amphibian's life cycle begins | when it lays eggs in water |
| Most adult amphibians live | partly on land and partly in water |
| the eggs of a frog | frogspawn |
| a frog's last stage | adult |
| a frog's first stage | egg |
| a frog's middle stage | larva |
| the larva of a frog | tadpole |
| Animals that eat other animals | carnivores |
| Animals that eat both plants and animals | omnivores |
| animals that eat only plants | herbivores |
| All amphibians absorb ___ through their skin | oxygen |
| A scientist who studies animals | zoologist |
| Frogs, toads, and salamanders are | amphibians |
| Almost all adult amphibians | are carnivores. |
| Most young frogs and toads | are herbivores. |
| Becuase they have a backbone and an internal skeleton, amphibians are | vertebrates. |
| Poikilothermic means | cold blooded |
| Amphibians are cold blooded because their | internal body temperatures change with the temperature of their surroundings. |
| Amphibians prefer | cool temperatures |
| Most amphibians have ___ skin. | moist |
| Amphibians lay their eggs in | water. |
| Snakes, lizards, turtles, tortoises, crocodiles, and alligators are | reptiles |
| Most reptiles | are carnivores. |
| Like amphibians, | reptiles are vertibrates. |
| Reptiles continue to grow | larger throughout their lives. |
| Reptiles have ___ , ___ skin. | scaly, dry |
| Reptiles lay eggs | on land. |
| Reptiles prefer | warm temperatures. |
| Reptiles, like amphibians, | are called poikilothermic. |
| A large group of prehistoric reptiles that lived on Earth but are now extinct. | dinosaurs |