Card Set Information
biology final exam
Study of animals
Internal skeleton, usually bone
External skeleton made of chitin EX. bugs, crawfish
All the body parts radiate out from one point. Ex: starfish, jellyfish
Two equal left and right sides. Ex. Human, horse, cow, rabbit,
No body plan. Ex. sponges
has No Backbone
Has a backbone
Tiny openings in the sponges body
Big opening at the top of the sponge, lets water out.
Line the inside of the sponge and move water through the body of the sponge.
Have stinging cells. Ex. jellyfish, sea anymony, hydra.
A body form in which the body form is attached to the base and has a ring of tentacles.
Body plan umbrella shaped tentacles hanging down. ex. jellyfish
flatworms, tape worms, flukes and planeria
allows them to detect light
Animal shows a head region.
Free living and harmless
Example of Flatworm parasitic
Tapeworm and fluke
has male and female reproductive organs
lives inside or on its host, harmful
segmented body. ex. earthworms and leaches
stores its food
grinds its food
nerve cells in the head of an earthworm.
The excretory organ in an earthworm, acts like kiddneys.
Round worm; ex tapeworms, heartworms, whipworms
Mollusc soft bodies
Secretes the shell
uses the foot to move
internal organs are located
Have to shells, or hinged shells. ex clams and oysters
mollusc that have antenae on their head with eyes on them.
have a head and foot area like a squid and octopus
Scraping organell inside the mouth of mollusc
Spinyskins ex: sea urchins, starfish, sand dollars
allow it to suction itself to something
helps it to breath, helps it to eat and move
water vascular system
Jointed feet, segmented bodies, exoskeleton made of Chitin
shed their exoskeleton to grow
chest and head region of spiders and crustations
Does not have many lenses, spiders have these
resperatory organs in spiders
tiny opening on the side of an insect that lets air into the trachea
the resperatory system of an insect
Excretory organ in crawfish
excretory organs in insects
egg laying structures
egg, nymph, adult
egg, larva, pupa, adult
spinal chord and brain
flexable rod becomes backbone
neck, throat, or gills