Topic 10 Phylums and Groupings Flashcards Preview

BIOL 1030 > Topic 10 Phylums and Groupings > Flashcards

Flashcards in Topic 10 Phylums and Groupings Deck (10):
1

Ctenophora

Comb jellies or sea walnuts

Radial symmetry, anal pores, no cnidocytes, comb-like plates of fused cilia

Most bioluminescent

2

Porifera

Sponges

Asymmetrical filter feeders made up of a loose confederation of cells

Motile larvae, sessile adults

Spicules - calcium carbonate and silica skeleton

3

Cnidaria

Stinging-celled animals

Distinguishable tissues but no organs, simple nerve net

Carnivorous with cnidocytes, but sessile

Internal digestion

4

3 life cycle stages in Cnidaria

Planula - multicellular with cilia, part of plankton
Polyp - sessile, develops from planula
Medusa - often umbrella-shaped and motile

5

4 classes in Cnidaria

Hydrozoa, Scyphozoa, Cubozoa, Anthozoa

6

Hydrozoa

Hydroids

Marine, colonial organisms

Have both polyp/medusa

7

Scyphozoa

Jellyfish

Dominant medusa, small polyp

Separate sexes, polyps form from multiple medusae

8

Cubozoa

Box jellyfish

Box-shaped medusa, small polyp

Fatal stings to humns

9

Anthozoa

Sea anemones and corals

Largest class in Cnidaria

Dominant polyp, can be solitary/colonial

Often symbiotic with algae

10

Coral exoskeletons are made of _____

calcium carbonate