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Biology crap
| Question | Answer |
|---|---|
| The phylum for starfish, sea stars, sea urchins, and sand dollars | Echidonermata |
| What term mean "Mouth develops first"? | Deuterostomes |
| What term means"anus develops first"? | Protostomes |
| Are mollusks(clam and squid), annelids(earthworms), and anthropods protostomes or deuterostomes? | Protostomes |
| Are echinoderms and chordates protostomes or deuterostomes? | Deuterostomes |
| A system of fluid-filled closed tubes that work together to enable echinoderms to move and get food? | Water vascular system |
| The strainer-like opening to the water-vascular system is the | madreporite. |
| Small, muscular, fluid-filled tubes that end in suction-cuplike structures that are used in movement, food collection, and respiration are called | tube feet |
| What is unique about the feeding and digestion of echinoderms? | They digest food OUTSIDE their body. |
| Relationships in which one organism benefits and the other organism is neither helped nor harmed is called | commensalism. |
| Give an example of an echinoderm commensalistic relationship: | brittle stars live inside a sponge where they are protected and feed on material that have settled on the sponge |
| What benefit do echinoderms give to the ecosystem? | They are bioturbators meaning they stir up sediment on the ocean |
| How do echinoderms harm the ecosystem? | They destroy coral reefs if they are too many of them. They eat kelp forests, destroying habitats for fish, snail, and crabs |
| those with backbones are called | vertebrates |
| those without backbones are called | invertebrates |
| What are the two main groups of chordates? | Turnicate and lancelet |
| What are four distinctive features of chordates | dorsal tubular nerve cord, a notochord, pharyngeal pouches, postanal tail. |
| What does the anterior tubular nerve cord become in chordates? | The brain |
| A group of fish without jaws, scales, paired fins, or bony skeleton | Jawless fish |
| include the lamprey and hagfish | jawless fish |
| A group of fish with cartilage instead of bone | cartilagonious fish |
| Includes sharks, skates, and rays | Cartilaginous fish |
| Belongs to class chondrichthyes | Cartilaginous fish |
| Belongs to the class osteichthyes | Bony fish |
| Include crappie, bass, bream, perch, and salmon | bony fish |
| a group of fish with bones | bony fish |
| a group whose members can live on both land and in water | amphibians |
| undergo metamorphosis like from a tadpole to a frog | amphibians |
| Include frogs and salamanders | amphibians |
| includes snakes and turtles | reptiles |
| have an amniotic egg; dry, scaly skin | reptiles |
| have an amniotic egg and feathers | birds |
| are members if the class Aves | birds |
| have an amniotic egg, hair, and breasts to feed the young. | mammals |
| include humans, pigs, deer, cows, whales. | mammals |
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