Parade of Kingdoms

Kingdom Animalia

In Phylum Porifera how many species

8,500

Where do most porifera live

most in marine, some in freshwater

What symetry do most porifera have

radial symetry

What does radial symetry mean

it is round when viewed from above and can be cut in half in many planes and both halves are identicle

what are porifera

sponges

What are the functions of skeletal systems in animals

works with mucsles to create motion

protects internal organs

keeps us vertical and not on the ground

what is the simplest form of a skeleton

Hydraulic skeleton

who has hydraulic skeletons

Jelly fish, anemones, earthworms

What do hydroulic skeletons have in them

Store H2O in body and put it under pressure with muscles

why do hydraulic skeletons have H2O in them

it creates a stiff structure that muscles work against

SWhat is the second simplest form of skeleton

exoskeleton

what is the most complex form of skeleton

arthropod exoskeleton

How does a arthropod exoskeleton work

Muscles attach to the inner surface of the exoskeleton to create motion, often involving levers.

What is the skeleton of chordates made out of

bone or cartilage

what was the first peice of the skeleton to evolve

notochord

What is the notochord

rod of cartilage running length of body

what was the second peice to evolve in chordates skeleton

vertebrae replaced notochord

are vertebrae controlled all together or individually

each vertebrae could be controlled individually 

what was the 3rd peice of the chordate skeleton to evolve

brain case

What is the brane case made out of

bone/cartilage

what does the brain case do

protects the brain

what was the 4th peice of the chordate skeleton to evolve

Jaws

what was the 5th peice of the chordate skeleton to evolve

paired fins

What did the jaws come from

came from skeletal support of gills

What did paried fins become

fins altered into limbs

Why are limbs commonly modified

to make locomotion efficient

1

humerus

2

radius

3

ulna

4

carpals

5

metacarpals

6

phalanges

1

humerus

2

radius

3

ulna

4

carpometacarpus