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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 |