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Bio chap 28/29
| Term | Definition |
|---|---|
| An octopus is a | cephalopod |
| What are the three parts of a mollusk body plan? | Foot, mantle, visceral mass |
| A trochophore | is the larval form of a mollusk. |
| Snail and slugs are | gastropods. |
| Clams and oysters are | bivalves. |
| What organ do mollusks use for gas exchange? | Gill |
| What type of circulatory system does a mollusk have? | An open circulatory system |
| What do we call the tooth-like tongue of a mollusk? | Radula |
| What type of symmetry do most mollusks have? | Radial |
| What is the central section that holds a mollusks organs called? | Visceral mass |
| What is the visceral mass of a mollusk covered by? | The mantle |
| Which mollusk has the largest brian? | Cephalopods |
| What are the 3 major classes of mollusks? | Gastropods, cephalopods, bivalves |
| What are the dividing walls between each segment in an annelid called? | Septa |
| What are the bristles on each segment of an annelid called? | Setae |
| What is the primitive brain in an annelid called? | Cerebral ganglia |
| What are the common names for the 3 groups of annelids? | Earthworms, leeches, marine worms |
| What type of circulatory system do annelids have? | Closed circulatory system |
| What is the common name for Polychaeta? | Marine worms |
| What is the common name for Oligochaeta? | Earthworms |
| What is the common name for Hirudina? | Leeches |
| Which type of annelid has suckers at both ends? | Leeches |
| Name 4 parts of the digestive system of an earthworm. | Mouth, pharynx, crop, gizzard, intestines |
| What is the midbody region of an arthropod called? | Thorax |
| What are the openings in an arthropod that allow air to enter their body? | Spiracles |
| Malpighian tubes are part of which system in arthropods? | Excretory system |
| What is the system of air tubes in an arthropod called? | Trachea |
| Name 3 characteristics of arthropods. | Jointed appendages, segmented body, hard external skeleton, open circulatory system |
| Name the 3 body regions of an arthropod. | Head thorax abdomen |
| What are 2 functions of an arthropod’s exoskeleton? | Protection from predators, prevents water loss |
| What are the openings of the respiratory system of an arthropod called? | spiracles |
| What are the breathing tubes of an arthropod called? | Trachea |
| What system do the Malpighian tubules of an arthropod belong to? | Excretory system (they filter out wastes) |
| Describe the eyes of an arthropod. | Compound- each eye is composed of hundreds of smaller eyes |
| Appendages found on arachnids that are used to attack prey. | Chelicera |
| Second pair of appendages (from the anterior end) found on an arachnida. | Pedipalp |
| Silk-producing organ located on the posterior end of an arachnid. | Spinnerette |
| What do arachnids do to their prey before they eat it? | They inject a poison that liquefies the prey |
| Name three examples of arachnids. | Spiders, ticks, scorpions, horseshoe crab |
| Name 3 characteristics of crustaceans. | Mandible for eating, gills for breathing, carapace to protect cephalothorax |
| Name 3 examples of crusteceans. | Crayfish, lobsters, shrimp, crabs |
| Name 3 characteristics of insects. | Wings for flying, specialized mouthparts, undergo metamorphosis, developed social systems |
| Name 3 characteristics of echinoderms. | 5 part radial symmetry, water vascular system, skin gills, internal skeleton |
| What are the tiny plates of calcium carbonate that form the skeleton of an echinoderm called? | Ossicles |
| Name 3 examples of echinoderms. | Starfish, sand dollar, sea cucumber, sea urchin |
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