Platyhelminthes

Superphylum name

Lophotrochozoa

Some species will have what type of feeding apparatus?

locophore feeding apparatus

What does the locophore feeding apparatus consist of?

cilia around mouth

What do the trochophore larvae have?

two bands of cilia

are Platyhelminthes bilateral

yes

Are they triploblastic or diploblastic?

triploblastic

acoelomate, pseudo., or eucoelomate?

acoelomate

ectoderm tissue forms

the epidermis

their mesoderm tissue differentiates into

layer of longitudinal muscle + layer of circular muscle

what do the layer of longitudinal muscle and circular muscle further differentiate into?

mesenchymal cells

what do the mesenchymal cells do?

assist with metabolic excretion

endoderm tissue

digestive system

Is it a protostome or deuterostome?

Protostome

What does their cephalization consist of?

nerve tissue and sensory organs

Ocelli

eyespots that sense sensitivity of light

Do they have a digestive system, if so what kind?

yes, and incomplete digestive system

Where is their food digested?

in the GVC

What does their excretory system contain?

network of tubules running along the lateral periphery of the animal

Network of tubules in excretory system do what?

connect to flame cells with cilia

What is the function of flame cells w cilia?

it releases metabolic waste out of body thru pores

What does their nervous system have?

2 cerebral ganglia (surround ocelli)

2 lateral nerves along length of body

the 2 ganglia and 2 lateral nerves

connect to each other by transverse nerves

Do they have a respiratory or a circulatory system ?

no

Are they monecious or dioecious?

monecious

Are they regenerative?

yes

Asexual reproduction via

fragmentation