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Carter Mittens Ch 12
Blume Ch. 12.2
| Question | Answer |
|---|---|
| Sponges probably _____ separately from all other animals. | Evolved |
| What is a sponges body? | Hollow tube |
| What do sponges often have? | Spicules, or Spongin |
| What do sponges use to get food? | Pores |
| What are sponges? | Hermaphrodites |
| Are Cnidarians vertebrates or invertebrates? | Invertebrates |
| What type or water do Cnidarians live in? | Salt Water |
| Most Cnidarians have two what? | Body forms |
| What shape is a polyp? | Vase shape |
| What shape is a medusa? | Bell-shaped |
| How many body openings does a Cnidarian have? | One |
| What does a digestive cavity do? | Break down food |
| What does a nerve net do? | Carries impulses and connects all organism parts |
| Most Cnidarians have ______ with stinging cells to help capture food | Tentacles |
| What are Cnidarians? | Predators |
| Cnidarians can _______ sexually and asexually | Reproduce |
| What are most Cnidarians fossiles? | Corals |
| How do coral reefs form? | Corals secrete their hard external skeletons on those of earlier generations |
| Coral reefs are _____ ecosystems. | Diverse |
| Shells, pearls, and chemicals for human medical uses are all _______ that coral reefs provide. | Resources |