biology test 11 Word Scramble
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| Question | Answer |
| invertebrates | animals that lack a backbone |
| vertebrates | animals that possess a backbone |
| nematocysts | small capsules that contain a toxin which is injected into prey or predators |
| Posterior end | the end of an animal that contains its tail |
| Hermaphroditic | possessing both the male and the female reproductive organs |
| Mantle | a sheath of tissue that encloses the vital organs of a mollusk, makes the mollusk's shell, and performs respiration |
| know the phylum for the sponge, snail, jellyfish, segmented sea worm, flatworm | Porifera, Mollusca, Cnidaria, Annelida, Playthelminthes |
| know if an organisms is a univalve or bivalve mollusks | bivalves |
| what do sponges eat and how do they get thier food | sponges eat algae and bacteria by pumping the water through their body which collects the food from it |
| what is the difference between a hard, prickly sponge and a soft sponge? | hard prickly sponges have spicules; soft sponges have spongin |
| which phylum of animals discussed in this module has nematocysts? | phylum Cnidaria |
| an earthworm's seminal vesicles are full. Has it mated yet? | no |
| what function does the cuticle perform in an earthworm? | helps the earthworm to get oxygen and get rid of carbon dioxide |
| Two members of phylum Platyhelminthes are studied. The first has a complex nervous system and the second does not. Which one is most likely the parastitic planarian? | the second is the parasite |
| be able to identify the structures of an earthworm by labeling a diagram | see diagram in book |
| what is the common mode of asexual reproduction among the organisms of phylum Cnidaria? | budding |
| what is the common mode of asexual reproduction among the organisms of phylum Platyhelminthes? | regeneration |
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libbykaly