Unit 3 test
What characteristics do all animals share?
Eukaryotic, Heterotrophs, no cell wall, multicellular, reproduce sexually, have the ability to move
what does Motile mean
Can move
What are the names of labeling upper side, back side, front end, lower side.
Anterior, Dorsal, Posterior, Ventral
What is Porifera
Sponges
what does Sessile mean
that they are fixed (stuck in the same spot)
how do sponges feed
fillter feeding
the sponge only has one
oriface
they dont have what (sponges) and consists of only ___ cell layer
Tissue and has 1 cell layer
What does Hermaphrodite mean
They can produce sperm or eggs if they need to. doesnt matter their gender
What does the term tissue mean
They are gling to have the sams functon and work together
What are some types of Cnidarians
jelly fish, sea anemones, coral, hydras
name the parts of a jelly fish
tentacles, gastric cavity, endoderm, ectoderm
what are the two types of the jelly fish
polyp and medusa
What does Asymmeterical mean
No synmerty and is a irregular shape
What does Radial symmetry mean
no back or front end, does have a top or bottom, body is organized along a vertical axis
what does bilateral symmetry mean
Dorsal side and ventral side as well as anterior region and a posterior region
can be split into two and have a mirror image
What does Extoderm mean
outer layer
what does mesoderm mean
middle layer
what does endorerm mean
inner layer
name the parts of a sea sponge
Osculum, choanocytes, pores, spicules
what does Protostomes mean
the bastropore becomes the mouth
what does Deuterostomes mean
"starts off as assholes"
starts at the bottom and works its way up
Cladagram labeling
Paranoid - proifera
childern - cnidaria
punch - platyhelminthes
naked - nematode
men - molluscs
at - annelids
arcade - arthropods
event - echinoderms
centers - choradates
What is Acoleomates
they have a compact body without a cavity between the digestive track and body wall (Ex: Flat worms)
What is Pseudocoelomates
Havs a fluid-filled cavity between the digestive track, but its not entirely surrounded by mesodermal tissue (Ex: round worms)
what are Coelomates
have a true coelom (Ex: segmented worms- annelids)
common name for platyhelminthes
Flat worms
Common nams cof nematoeds
roundworms
Facts about roundworms
They live in plants and animals, some round worms are a meter in length, all round worms develop from 3 germ layers
Flat worms rely on _______ for resperation and excrestion
Diffusion
what is cephalization
the concentration of nerve cells/organs in the front of the body (also known as the brain)