Lophotrochozoans

Are lophotrochozoans triploblastic or diploblastic?

triploblastic

Lophotrochozoans are classified by…

trocophore larval stage or the lophophore which is a structure aorund the mouth and helps with filter feeding.

What is the coelom?

An internal body cavity that develops from the mesoderm

acoelomate animals have…

no enclosed cavity. ex? platyhelminthes

pseudocoelomate animals have…

body cavity with no mesoderm lining. ex) nemotoda and flatworms

coelomate animals have…

body cavityies lined by mesoderm. ex) molluska, annelida

in protosomes, coelom forms from

mesoderm

in deuterostomes, coelom forms by…

endoderm

What type of circulatory system do anthropods and most mollusks have?

Open circulatory system

What type of circulatory system do cephalopods and annelids have?

Closed circulatory system

What organism is this?

Rotifer

what group are flatworms apart of ?

Platyhelminthes

Playthelminthes have no circulatory or respiratory system, instead they…

gas exchange through diffusion

class tubellaria are also known as…

planaria

what type of helminthes is this?

planaria

Trematoda are also known as …

flukes

What organism is this?

Trematoda/ Fluke

Cestoda are also known as…

tapeworms

what are the characteristics of annelida?

coelomates; fluid filled coelom, metamerism; segmentation, and setae

oligochaeta are also known as…

earthworms

What are known characteristics of molluska?

calcium carbonate shell, viseral mass which is a collection of internal organs, mantle, annd muscular foot which is used for locomotion and feeding.

Cephalopoda are known for…

being the only mollusks with a closed circulatory system and having two brachial hearts