Lesson 2 – Animals with Backbones Vocabulary words: vertebrate- an animal with a backbone
Lesson 2 – Animals with Backbones Vocabulary words: warm-blooded- a kind of animal whose body temperature does not change much
Lesson 2 – Animals with Backbones Vocabulary words: cold-blooded- a type of animal that gets its heat from outside its body.
Lesson 2 – Animals with Backbones Vocabulary words: amphibian- a cold-blooded vertebrate that spends part of its life in water and part of its life on land
Lesson 2 – Animals with Backbones Vocabulary words: reptile- a cold-blooded vertebrate that has scaly, waterproof skin, breathes air with lungs, and lays eggs.
Lesson 2 – Animals with Backbones Vocabulary words: bird- a vertebrate that has a beak, feathers, two wings, and two legs
Lesson 2 – Animals with Backbones Vocabulary words: mammal- a warm-blooded vertebrate with hair or fur; female mammals produce milk to feed their young.
Lesson 2 – Animals with Backbones Vertebrates are grouped into seven classes: Cartilaginous fish Jawless fish Bony fish Reptiles Amphibians Birds Mammals
Lesson 2 – Animals with Backbones -The largest class of vertebrates are bony fish.
Lesson 2 – Animals with Backbones -Cartilaginous fish (cold-blooded): Example- Sharks and Rays
Lesson 2 – Animals with Backbones -Jawless fish (cold-blooded): Example- Lampreys
Lesson 2 – Animals with Backbones -Bony fish (cold-blooded): Example- tuna and goldfish
Lesson 2 – Animals with Backbones -Reptiles (cold-blooded): Example- lizards, snakes, turtles, and alligators
Lesson 2 – Animals with Backbones -Amphibians (cold-blooded): Example- frogs, toads, and salamanders
Lesson 2 – Animals with Backbones -Birds (warm-blooded): Example- Bald Eagle, Cardinal, Robin
Lesson 2 – Animals with Backbones -Mammals (warm-blooded): Example- Humans, Kangaroos, Sheep, Bats
Lesson 2 – Animals with Backbones -The 3 main groups of mammals are classified by how young are born. 1. Mammals that lay eggs: duck-billed platypus and the spiny anteater
Lesson 2 – Animals with Backbones 2. Mammals with Pouches: Kangaroos, kaolas, and opposums.
Lesson 2 – Animals with Backbones 3. Mammals that develop inside: Sheep, bats, apes, and all others