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Zoology Ch. 11
Vocabulary Ch. 11 Zoology
| Question | Answer |
|---|---|
| Elongated with an anterior head, containing the mouth and certain nervous and sensory structures. | Head-foot |
| Contains the organs of digestion, circulation, reproduction, and excretion and is positioned dorsal to the head-foot. | Visceral Mass |
| Attaches to the visceral mass, enfolds most of the body, and may secrete a shell that overlies the body. | Mantle |
| The space between foot and the mantle which is open to the outside and functions in gas exchange, excretion, elimination of digestive waste, and release of reproductive products. | Mantle Cavity |
| A rasping structure which consists of chitinous belt of rows of posteriorly curved teeth. | Radula |
| A 180 degree counterclockwise twisting of the visceral mass, mantle, and mantle cavity in gastropods. | Torsion |
| Examples include snails and slugs | Gastropoda |
| A rolled extension of the mantle that serves as an inhalant tube. | Siphon |
| Circulatory system with no true vessels and the blood bathes the cells of tissue in open spaces. | Open Circulatory System |
| Open spaces where tissues and organs are bathed in blood. | Sinuses |
| The oldest part of the shell which is a swollen area near the shell's anterior margin in Bivalves. | Umbo |
| Muscles that hold bivalves closed when they are threatened. | Adductor muscles |
| Containing a single sex organ on each individual in a species. | Dioecious |
| Containing both sex organs on one individual of a species. (Hermaphrodite) | Monoecious |
| Created when bacteria or sand particles get lodged between the Mantle and shell in certain bivalves. | Pearl |
| Within the cavity of the Cephalopods which allows them to break up shells when feeding. | Beak |
| Used in defense to blind attackers. | Ink |
| Circulatory system in which all the blood is contained within vessels throughout the body. | Closed Circulatory System |
| Cephalopods can change colors in their pigment cells by contracting and expanding these structures. | Chromatophores |
| Cephalopods contain many compacted ganglia within a cartilaginous skull forming this unique structure in invertebrates. | Brain |
| Examples include squid, octopus, nautilus, and cuttlefish. | Cephalopoda |
| Examples include clams, oysters, mussels, and scallops. | Bivavlia |
Created by:
rburrier
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