4/6/2011
1. What is the largest phylum? Arthropoda
2. What is the 2nd largest phylum? Mollusca
3. What is the largest animal class? Insecta
4. Which phylum of worms was the first to have
a complete digestive system? Nemotoda
5. List the type of symmetry for: a) humanbilateral, b) sponge-asymmetrical, and c) sea
star-radial.
6.
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Invertebrate Characteristics
have nematocysts; 2 body forms: polyp & medusa Cnidaria
sessile filter feeders with an osculum Porifera
segmented bodies; breathe through their skin Annelida
round bodies; 1st to have a complete digestive system Nematoda
jointed appendages Arthropoda
exoskeletons of calcium carbonate Echinodermata
consist of a head, visceral mass, and a foot Mollusca
flat bodies; many are parasitic Platyhelminthes
sea anemone, hydra Cnidaria
Sponge Porifera
sea urchin, sand dollar Echinodermata
tapeworm, fluke Platyhelminthes
Insects Arthropoda
earthworm, leech Annelida
snail, octopus Mollusca
trichnella, hookworm Nematoda
7. 1) Multicellular 2) Eukaryotic
3) Heterotrophic
4) Have to digest food
5) Lack cell walls 6) Have the ability to move
8. sessile: being permanently attached to something &
unable to move; ecological indicator: show how humans
impact an ecosystem
9. What is the difference between endothermic and
exothermic? Which two classes are endothermic?
Endothermic = warmblooded & Ectothermic =
coldblooded; Birds and Mammals
10. What is a reproductive adaptation featured only in classes
Reptilia, Aves, and Mammalia? Amniotic egg
11. a. Aves b. Osteichichtyes c. Reptilia d. Amphibia
e. Aves f. Mammalia
g. Osteichichtyes
12. Figure It Out (yep, I said it!)
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