How Animals Are Classified
What are animals without backbones?
invertebrates
Invertebrates with soft bodies are called?
Some are supported by one or two?
Some examples are?
mollusks
shells
oysters, squid, snails
What are some examples of insects in the arthropod group?
butterfly, roach, beetles
What are animals with backbones called?
vertebrates
Where do amphibians begin life and then where do they move?
What ability do amphibians have to breathe?
How do amphibians reproduce?
They begin life in water and then they develop lungs and move to land.
They breathe through their lungs and skin.
They lay eggs in the water.
What are some examples of invertebrates?
sponges, jellyfish, worms, sea stars
Sea stars are classified as echinoderms and they live on the?
They pry open the shells of clams by using?
What does the second function of the suction cup help the sea star do?
ocean floor
powerful suction cups
anchor to rocks
Most crustaceans live in the ocean. What are some examples of crustaceans in the arthropod group?
crabs, lobster, shrimp
What 5 groups are classified in the vertebrate group?
mammals, birds, reptiles, amphibians, fish
What are some examples of reptiles?
How do they breathe?
What is their body covered in?
How od they reproduce?
lizards, snakes, turtles, alligators, crocodiles
lungs
dry scales
lay their leathery eggs on land
Sponges appear more like what because they attach themselves to rocks and other objects?
Why are sponges classified as animals?
plants
because they consume tiny organisms that float in the water
What is the largest group of all animal species?
What type of outer covering do they have that protects its body?
How do they move?
arthropods
shell
exoskeleton joints
Arachnids have 8 legs. What are some examples of arachnids?
spiders, scorpions, ticks
How do fish get oxygen from the water?
Where do fish spend their entire lives?
How do fish reproduce?
How do fish move?
gills
in the water
laying eggs
fins and tails
How do birds breathe air?
How do birds reproduce?
How do their bodies help them fly and keep warm?
What are some examples of birds?
lungs
lay eggs with hard shells
hollow bones make their bodies light for flying and their feathers keep them warm
eagles, blue jays
A hydra resembles a plant but uses its what to capture prey?
snakelike tentacles
What 3 groups are arthropods broken into?
insects, arachnids, crustaceans
What are narrow tube-like invertebrates called?
worms
What are some examples of fish?
bass, brim, sharks, seahorse
What are mammals covered in that keeps them warm?
What do they use to breathe?
What do they feed their babies?
Where do mammals live?
hair, fur
lungs
milk
land, water, air
Sponges, hydras, jellyfish and their relatives all have what?
hollow bodies
Insects make up what percent of all arthropods?
70%
Why do earthworms burrow down into the ground?
What are some other examples of worms?
to digest plants/animals
earthworms, flatworms, round worms
What are some examples of amphibians?
salamanders, frogs, toads
What are some examples of land mammals?
What are some examples of water mammals?
What are some examples of air mammals?
land-humans, dogs, cats
water-whales, dolphins
air- bats