Porifera and Cnidaria

Part I True or False: Correct the false statements.

1. Both Poriferans and Cnidarians live in aquatic environments. ____________

1. Poriferans have two distinct tissue layers. _________

1. Cnidarians have a psuedocoloem. __________

1. Poriferans spend most of their life as a mobile larvae. __________

1. Nematocysts are specialized digestive cells. _________

1. Poriferans have radial symmetry. _________

1. The medusa is the mobile stage of many __________

Part II: Clearly describe TWO ways in which the Porifera and Cnidaria are different

Part III: List and describe two methods of asexual reproduction in Sponges.

Part IV:  Describe the sexual life cyle of  a Cnidarian.

Part VI: Define the following terms:

1. Collar cell

1. Spicule

1. Polyp

1. Sessile

Worms and Starfish

Part I : Flat Worms

What symmetry is found in all flat worms ?

Do flat worms have a coelom ?

What is meant by a parasitic lifestyle ?

Par II: Nematodes:

Nematodes have a distinctive difference from the flat worms. Describe the differences between the flat worms and the round worms. (  Do not just say one is round and one is flat.

Part IV : Annelids

Describe a distinctive feature of the annelids and give an example of an organism that shows this feature.

Part V: Molluscs

Describe two distinctive features of the Molluscs

Part VI: Echinoderms

True or False: Correct the false statements.

1. Echinoderms have a distinctive head. __________

1. Echinoderms have a mesodermal skeleton__________

1. The larval stage of Echinoderms are radially symmetrical _________

1. Sea urchins belong to the Class Asteroidea ________

1. Many Echinoderms are predatory. __________

1. Sea cucumbers are Echinoderms. _________

Arthropoda

Part I General features of the Arthropoda

True or False: Correct the False statements.

1. All Arthropods have an internal skeleton similar to echinoderms. __________

1. Arthropods have an increased capacity to move due to jointed appendages. ________

1. Some Arthropods have developed the ability to fly. _________

1. Arthropods have a closed circulatory system. ___________

1. The main body plan of Arthropods consist of a head, coelom, and abdomen. _________

Part III: Arthropod classes:  For each of the following classes:

1. Give an example
2. Describe the key identifying features

1. Arachnida

1. Chilopoda

1. Crustacea

1. Insecta

1. Diplopoda

Chordata

Part I List three things common to all Chordates

Part II: True or False: Correct all false statements

1. Urochordata include the hagfish and lampreys. ___________

1. Lancelets are aquatic gill breathing simple vertebrates. _________

1. The Agnathans are known as jawless fish. _________

1. Sharks and rays have bony skeletons. __________

1. The development of the amniotic egg was first seen in the reptiles. _________

1. Warm blooded organisms are found in the Osteichthes. __________

1. Aves have a hard shelled egg. _________

1. Mammalians have a three chambered heart. ____________

1. Aquatic and terrestrial stages are found in the Monotremes. _______

1. Mammals are covered in scales and nurse their young. ________

Part III: Chordate Class overview:   For each of the Chordate classes listed state the following information.

1. An example
2. Two distinctive defining features

1. Reptilia

1. Chondrichtheyes

1. Mammalia

1. Aves

1. e) Amphibia