Classification

Notes

Classification Interactive Notes

Vocabulary Words

vertebrates

animals with a backbone
fish
amphibians
reptiles
birds
mammals

Invertebrates

animals that do not have a backbone
arthropods, mollusks, worms, echinoderms, sponges, cnidarians

arthropods

invertebrates with jointed legs
exoskeleton
arachnids, insects, crustaceans, centipedes, millipedes

Mollusks

invertebrates with soft bodies
most have outer shells
live on land and in the sea

worms

invertebrates
flatworms-flat, ribbon-like body
roundworms-round body with pointed ends
segmented worms-body divided into sections

Echinoderms

invertebrates with endoskeleton
spiny with suctions as feet
do not contain heads or brains

Sponges

invertebrates made of 2 cell layers
contain no symmetry or bones
water flows in and out of them

Cnidarians

invertebrates with poison tentacles
use stingers to capture prey
has a mouth and simple tissues

Warm-Blooded Animals

make their own body heat even when it is cold outside
mammals and birds are warm-blooded

Cold-blooded animals

become hotter and colder, depending on the the temperature outside
reptiles, amphibians, and fish are cold-blooded

Fish

vertebrate
cold-blooded
breathe underwater using gills
live in water
have scales and fins
lay many eggs

Amphibians

vertebrate
cold-blooded
live on land and in water
webbed feet
breathe with lungs and gills
moist, smooth skin (no hair or fur)
4 legs (sometimes none)
lay many eggs

reptiles

vertebrate
cold-blooded
have scales, not fur
have dry skin
usually lay eggs, sometimes have live young
ear holes instead of ears
4 legs or no legs

Birds

vertebrate
warm-blooded
have feathers and wings
lay eggs
have 2 legs
ear holes instead of ears
most fly

Mammals

vertebrates
warm-blooded
have hair or fur
give birth to live young
mothers nurse their young with milk
hund lungs and need air to breathe

Vascular Plants

plants with tubelike structures that carry/distribute nutrients
most have seeds
contain a root system
trees, bushes, roses, flowers, etc

Non-Vascular Plants

plants that do not contain structures that carry nutrients
do not contain a root system
mosses, algae, lichens

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