Animals
has three body segments and three pairs of legs
insect
eats mainly insects
insectivore
gets its food from the water that flows through its body
sponge
Do invertebrates have backbones?
No
the characteristic that most of the animal phyla have in common
they are invertebrates
arthropod with two body segments and eight legs
arachnid
eats other animals
carnivores
has radial symmetry and tube feet
echinoderm
How can vertebrates grow larger than invertebrates?
They have a backbone.
Why is a spider an arachnid and not an insect?
Arachnids have two body segments and eight legs and insects have three body segments and three pairs of legs.
arthropod with five pairs of legs and a claw
crustacean
eats both plants and animals
omnivores
a soft body and a mantle (like an octopus and oyster)
mollusk
animals that eat organisms that float through the water
filter-feeder
Why can ticks cause serious human health problems?
They use humans as hosts because they are parasites.
has many body segments and many legs
centipede
eats plants only
herbivore
have segments and move by using setae like earthworms
annelids
bats and dolphins use this to find food
echolocation
Why would cold-blooded animals have difficulty surviving in polar regions?
Cold blooded animals receive their heat from the environment.
name the three types of cold blooded animals
amphibians, fish, and reptiles
name two types of animals that are warm-blooded
birds and mammals
have jointed legs, a segmented body, and an exoskeleton like shrimp and spiders
arthropods
tiny stinging organelles found on some animals
nematocysts
Name the steps in incomplete metamorphisis and complete metamorphisis.
I = egg, nymph, adult
C = egg, larva, pupa, adult