classification
putting things which are alike together in the same group
vertebrate
animal with a backbone or spine
invertebrate
animal WITHOUT a backbone or spine
5 classes of vertebrates
1. mammal
2. bird
3. reptile
4. amphibian
5. fish
mammal
Class of vertebrate that:
1. are warm-blooded
2. have fur or hair
3. babies drink milk
4. have babies without eggs
5. have four limbs (whales and dolphins have flippers)
bird
Class of vertebrate that:
1. are warm-blooded
2. hatch from eggs
3. have feathers that cover their bodies
4. have two legs and two wings
reptile
Class of vertebrate that:
1. are cold-blooded
2. hatch from eggs
3. have scales
4. have four short limbs or no limbs
amphibian
Class of vertebrate that:
1. are cold-blooded
2. hatch from eggs laid in water or wet places
3. smooth skin which must be kept wet
4. use skin, as well as lungs, for breathing
5. have four limbs
6. have young animals breathe through their gills
fish
Class of vertebrate that:
1. are cold-blooded
2. hatch from eggs laid in water (sharks give live birth)
3. must live in water and breathe through their gills
4. have scales on their bodies (sharks have smooth skin)
warm-blooded
body temperature that stays the same (ex: mammals, birds)
cold-blooded
body temperature that changes with the environment (ex: reptiles, amphibians, fish)
Limb
an arm, leg, or wing
scales
rough and flaky skin
Fur
animal hair
feathers
the soft, light covering of a bird
classification
putting things which are alike together in the same group
vertebrate
animal with a backbone or spine
invertebrate
animal WITHOUT a backbone or spine
5 classes of vertebrates
1. mammal
2. bird
3. reptile
4. amphibian
5. fish
mammal
Class of vertebrate that:
1. are warm-blooded
2. have fur or hair
3. babies drink milk
4. have babies without eggs
5. have four limbs (whales and dolphins have flippers)
bird
Class of vertebrate that:
1. are warm-blooded
2. hatch from eggs
3. have feathers that cover their bodies
4. have two legs and two wings
reptile
Class of vertebrate that:
1. are cold-blooded
2. hatch from eggs
3. have scales
4. have four short limbs or no limbs
amphibian
Class of vertebrate that:
1. are cold-blooded
2. hatch from eggs laid in water or wet places
3. smooth skin which must be kept wet
4. use skin, as well as lungs, for breathing
5. have four limbs
6. have young animals breathe through their gills
fish
Class of vertebrate that:
1. are cold-blooded
2. hatch from eggs laid in water (sharks give live birth)
3. must live in water and breathe through their gills
4. have scales on their bodies (sharks have smooth skin)
warm-blooded
body temperature that stays the same (ex: mammals, birds)
cold-blooded
body temperature that changes with the environment (ex: reptiles, amphibians, fish)
Limb
an arm, leg, or wing
scales
rough and flaky skin
Fur
animal hair
feathers
the soft, light covering of a bird