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Squid/Adaptations
Squid and Adaptations Test Review
| Question | Answer |
|---|---|
| Pen | internal shell that gives the squid shape and supports it |
| Jet propulsion | the mantle forces water out through the siphon which propels the squid backward |
| Mantle | highly muscular; forces water from the cavity through the tubular siphon to propel the animal quickly through the water |
| Cephalopod | closed circulatory system; predators; highly developed nervous system |
| Foot | single and large in most other mollusks; divided into sucker |
| Tentacles | long; suckers on ends only; grabs prey |
| Arms | short; lined with suckers; hold prey |
| Siphon | funnel used in breathing, jetting, squirting ink, laying eggs, and expelling waste |
| Gill | used to get oxygen from the water |
| Fin | balance and maneuver the animal |
| Ink sac | used to squirt out a cloud of ink; allows for protection from predators |
| Esophagus | pathway food travels through the squid; long threadlike organ attached to the beak |
| Structural adaptations | physical features of an organism |
| Behavioral adaptations | the things organisms do to survive |
| Adaptation | modification of an organism or its parts that make it more fit for existence under the conditions of its environment |
| Evolution | a change in a species over long periods of time |
| Deceptive coloration | an organism’s color fools either its predators or prey |
| Camouflage | helps an organism blend in with its surroundings |
| Mimicry | protects animals and plants from predators or hides them from prey because they mimic or look like other things |
| Advertising coloration | animals and plants use color to be noticed and can be used to either warn or attract animals |
| Y would people 100s of yrs ago imagine a giant squid attacking sailing ships? | alleged encounter between giant squid and French ship |
| How long do most squids live? | 1 to 3 yrs |
| What type of circulatory system do squid have? | Closed |
| How many times do squid mate in their lifetime? | one |
| What is squid ink made of? | melanin and mucous |
| Phylum of a giant squid | mollusca |
| Class of a giant squid | cephalopod |
| Order of a giant squid | teuthoidea |
| Genus of a giant squid | architeuthis |
| What are squid nerve axons used for? | experiment on nerve impulses |
| What is the beak used for? | feeding |
| What is the radula? | raspy, toothed tongue |
| How does the radula function? | rams food down esophagus |
| What is the function of the tentacles? | catch prey and pull it into arms |
| Can giant squid survive in warm water? Y or y not? | no; thin blood doesn’t carry oxygen well in warm water which causes them to suffocate |
| What is the only known giant squid predator? | sperm whale |
Created by:
is2903
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