Animals get energy from...
Like sponges, cnidarians have bodies that are this many cell layers thick.
two
There are three classes of fish. They are...
jawless, cartilaginous, and bony
Animals without a backbone are
invertebrate
If the body temperature of an animal is constant it is said to be this.
warm blooded
In a food chain, these use energy from the Sun to make food.
producers
Echinoderms are spiny skinned invertebrates with an internal supporting structure called a
endoskeleton
All fish have these to help them breath.
gills
Animals with a back are
vertebrates
A cold blooded vertebrate that lives on land and has waterproof skin with scales or plates is called a...
reptile
Fungi and bacteria are these that break down the bodies of dead organisms into chemicals.
decomposers
Animals with one shell, two shells, or an inner shell belong to this phylum.
mollusk
Fish are said to be this because their body temperature changes with the temperature of its surroundings.
cold blooded
Body parts with this match up as mirror images of each other when folded in half.
symmetry
A cold blooded vertebrate that spends part of its life in water and part of its life on land is a...
amphibian
Invertebrates are divided into groups called this based on their characteristics.
phyla
Crabs, lobsters, and shrimp are called
crustaceans
Animals with this kind of symmetry have body parts that extend outward from a central point.
radial symmetry
A warm blooded vertebrate with hair or fur; the female feeds milk to its young.
mammal
Insects have three body parts. They are...
head, thorax, abdomen
Invertebrates that use poisonous stingers on their tentacles to capture their prey and for protection are called
cnidarians
Animals with jointed legs and a body that is divided into sections belong to this phylum.
arthropod
Animals with two sides, which are mirror images of each other, have this kind of symmetry.
bilateral symmetry
A warm blooded vertebrate with feathers and a beak is called a
bird