Animal Unit
Chapters 32-34.
Chapter 32:
Key features of animals
Development of animals from fertilized egg to adult
Germ layers: 3 types and what tissues they will become
Parazoa vs. Eumetazoa, Protostome vs. Deuterostome, diploblastic vs. triploblastic
Acoelomate vs. Pseudocoelomate vs. Eucoeomate
Germ layers relate
How the body is divided up for study
Ventral/ Dorsal
Posterior/ Anterior
Inferior/ Superior
Medial/ Distal
Midsaggital plane
Types of symmetry
Chatper 33: See Invertebrate project
Chapter 34: Vertebrates (notes will be provided)
Human evolution
Invertebrate Project
You and a partner (or 2) are assigned a group of invertebrates to research and present to the class. You may
choose how you would like to present the information – PowerPoint, video, booklet, brochure, poster.
Remember that the entire class will be responsible for what you present to them. Handouts are required. All
handouts should be typed and one page. Pictures are encouraged. You will have 15 minutes to present.
Each presentation must include information on the following for the assigned group of invertebrates:
 type of symmetry
 reproduction/ life cycle
 number of germ layers and coelom
 specialized tissues
 type of body development
 5 examples of organisms
 movement
 *****interesting stories *****
In addition, there are required terms to be covered for each group of invertebrates.
After the presentation, you should be prepared to quiz the group through questions or some kind of game for
five minutes. At the 20 minute mark, the lesson must be completed.
Here are the group assignments and the required terms:
First presentations: Team 1 and Team 2 on Thursday Feb 14
Team 3 and Team 4 on Friday
Feb 15
Team 5 and Team 6 on Wednesday Feb 20
GRADE: 40 points on your animals test.
: Accuracy, usability to the rest of the class, organization of handout will be the three major
components considered.
Team 1:
Porifera:
- spongocoel
- osculum
- choanocyte
- ostia
- amoebocyte
- spongin
- spicules
- porocytes
Cnideria and Ctenophora:
- gastrovascular cavity
- comb
- life cycle of jellyfish
- polyp
- colloblasts
- portuguese man-o-war colony
- medusa
- cnidocytes
- coral reef types/ formation
- nematocysts
- mesoglea
Team 2
Platyhelminthes:
- pharynx
- gastrovascular cavity (highly branched) - Schistosoma life cycle
- eye spots
- ventral nerve chord
- Trichinella life cycle
- parasite
- ganglia
- scolex
Rotifera and Nematoda:
- parthenogenesis
- complete digestive tract
- cuticle
- hydrostatic skeleton
- longitudinal muscles
Nemertea and Lophophorate:
- proboscis apparatus - complete digestive tract
- lophophore
- closed circulatory system
Team 3
Mollusca and Annelida –
- foot
- trochophore
- setae
- differences in lifestyle between squid/octopus
- mantle
- visceral mass
- clitellum
- classes of mollusks
- radula
- torsion
- crop
- classes of annelids
- septa
- metanephridia
Team 4
Arthropoda:
- cuticle
- exoskeleton
- book lungs
- molting
- open circulatory system
- different classes
- chelicerae
- mandibles
- choose 5 important orders of insects
- antennae
- compound eyes
- malpighian tubules - metamorphosis (complete and incomplete)
- tracheal system
- spiracles
Team 5
Echinodermata
- tube feet
- water vascular system
- how tube feet are extended and used
- spines
- 2 stomachs of starfish
- 5 classes of echinoderms
- pentaradial symmetry
Team 6
Chordata
-
notochord
dorsal hollow nerve cord
pharyngeal gill slits
post anal tail
- 3 subphyla
- 7 classes of vertebrata
- phylogenic tree of chordate
- Archaeopteryx and Protavis