5 types of vertebrates
what class of vertebrates breathe with lungs, have feathers and two legs, have bills or beaks, most lay eggs and most can fly
birds
an animal with a backbone
vertebrate
only animals that have feathers
birds
what class of vertebrates breathe through gills, have scales and fins, live in water, and mostly lay eggs
fish
an animal without backbone
invertebrate
organs that use oxygen from air for breathing
lungs
Name the characteristics of reptiles. (4)
1. breathe with lungs
2. live on land (most)
3. have dry scales
4. lay eggs (most)
an animal whose body temp changes with the environment
cold-blooded
God-given ability or behavior that is inherited
instinct
mammals have 5 characteristics. name two of them.
1. breathe air with lungs
2. have hair or fur
3. produce milk
4. most have 4 limbs
5. most give birth to live young
organs that filter dissolved oxygen from water for some animals to breathe
gills
Whats an example of learned behavior?
answers vary
Amphibians have four characteristics. (1) They lay eggs, (2) they have smooth moist skin, name the third and fourth charcateristic
(3) young breathe through gills in water
(4) adults breathe with lungs on land
Fish's bodies are _______ to help them move easily through the water
streamlined
Compare amphibians and reptiles' skin
reptiles: scaly and dry