Animal Phyla Flashcards
Porifera
Asymmetrical
No mouth or anus
Examples of Porifera
Sea sponges
Cnidaria
Radial body symmetry
Has a mouth but NO ANUS!!
Examples of Cnidaria
Jellyfish
Sea anemones
Coral
Key feature about coral
Secretes calcium carbonate skeleton
Platyhelminthes
Bilateral body symmetry
Has a mouth but NO ANUS!!
Key features of Platyhelminthes
Flattened body shape
Can be parasitic
Key features about Cnidaria
Can have tentacles with stinging cells
Key feature about Porifera
Can have silica or carbonate based spicules
What are spicules
spikes
Annelida
Bilateral body symmetry
Separate mouth and anus
KEY features of Annelida
Body is composed of ringed segments
Move via peristaltic contraction of segments
perstaltic contracation?
Think of the peristalsis in our throat. The muscle is moving a wave motion. Ripple kinda. The worm moves like your throat
Examples of Annelida
Earthworms and leeches
Mollusca
Bilateral body symmetry
Separate mouth and anus
Key features of Mollusca
Contain visceral mass, muscular foot, and mantle
What is visceral mass
the soft, non-muscular region that contains the body organs (the inside of a snails shell has all its organs)
What is mantle
it is the body wall which covers the organs of digestion beneath the shell
What is muscular foot
The flat structure used for crawling (moving)
Examples of Mollusca
Snails
Slug
Oysters
Octopi
How are octopi mollusks?
They have a muscular foot. Its evolved to be now TENTICLES
Has a mantle
Arthropoda
Bilateral body symmetry
Separate mouth and anus
Key features of anthropoda
Joined body sections and appendages
Examples of anthropada
Instects
-Ants
-Spiders
and crustaceans
Chordata
Bilateru body symmetry
Serpate mouth and anus
Key features of Chordata
Notochord and hollow
Dorsal nerve tube
What is notochord
Long nerve cord that runs down our spine
What is dorsal nerve tube
Hollow cord that connects with our brain (the long tail attached to the medulla that runs down our spine)
