Vertebrates
cold blooded, breathe through gills, skeletons made of cartilage
sharks, rays, or skates
stinging animals use tiny organelles called
nematocysts
has 2 body segments and 8 legs
arachnid ex: spider
Eats plants only
herbivore
Echolocation is used to find objects by:
bats and dolphins
has feathers, lays eggs
bird
soft body and mantle that sometimes forms a shell
mollusks, ex: octopus, oyster
has 5 pairs of legs, 2 pairs of antennae, breathes through gills, and most have a claw
crustacean, ex: shrimp
eats other animals
carnivore
has scaly skin
reptile
cold blooded, go through metamorphosis, have smooth skin
amphibians
radial symmetry, live in water, move using tube feet
echinoderms
has 3 body segments, 3 pairs of legs, and most have wings
insect
eats mainly insects
insectivore
has hair
mammal
why would cold blooded animals have difficulty surviving in the polar region?
they depend on the environment for warmth, they could not keep enough body warmth to survive.
gather food from water pumped through their bodies
sponge
A spider is an arachnid and not an insect because
a spider has 2 body segments and 8 legs
eats both plants and animals
omnivore
Incomplete metamorphosis stages are:
egg, nymph, adult
used by birds and mammals to breath
lungs
called annelids, have segments, use setae to move
segmented worm
Why can some ticks cause human health problems?
ticks are parasitic, can cause lyme disease and rocky mountain spotted fever
an animal that eats organisms that float through the water are
filter feeders
The characteristic that most of the animal phyla have in common is:
they are invertebrates