Protostomia
What is one easy way to tell the two divisions apart (think on a small scale)?
Molecular Characteristics
What rank is Deuterostomia?
Division
No, lost in many species
What does Phylum Platyhelminthes include?
Flat worms
What are protonephridia called, and what is their function?
Excretory system - excreting waste
Flame cells
Is this division known for molting or shedding?
Neither
What phyla are considered to be part of Deuterostomia?
Chordata and Echinodermata
Which has a protein cuticle?
SP. Ecdysozoa
Why is "Turbellaria" in quotation marks?
It is a paraphyletic group
How did Dr. Adam explain how their body looked? (Think Brad Pitt)
Steam-rolled over; body is depressed (or flattened)
The blastopore forms what first in a protostome?
The mouth
What type of fate do blastomeres have? Explain.
Indeterminate fate; can still build what they need to build
What is the exoskeleton made of in SP Ecdysozoa?
Protein
What class includes monogenetic flukes?
Class Monogenea
What are rhabdite cells' function?
Aids in movement through the secretion of mucus
Describe the position of the nerve.
Around gut and ventrally located
Is it more advantageous to be a Deuterostome or a Protostome?
Deuterostome (nerve does not surround gut)
What is the difference between molting and ecdysis?
Molting - dead cells
Ecdysis - protein coat
Why is there more information known about some classes and not others?
Parasitism
Explain endolecithal eggs.
Yolk in vacuoles; eggs filled with yolks
What is the term that describes how the coelom is formed?
Schizocoely
What is the term for how deuterostomes develop a coelom, and what is an easy way to remember it?
Enterocoely, Deuterostomia = Disney ears
What phyla are considered to be in SP Lophotrochozoa?
Phylum Platyhelminthes
Phylum Annelida
Phylum Molluska
Name the 4 Classes in Phylum Platyhelminthes?
C. "Turbellaria", C. Monogenea ,
C. Trematoda , C. Cestoda
Triploblastic
Acoelomate