Zoology Questions
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These have long bodies with short legs, rounded ears, and a thick dark brown coat with a bushy tail.
They have short ear tufts, less than one inch; the ruffs of hair on the side of the head give the appearance of sideburns.
Melanin-containing substance produced by cephalopods and used as a defense mechanism.
Where is the majority of an octopus's sensory receptors located in the body?
Their trademark white tail, when erected, flashes a danger signal to othersThey have keen hearing, made possible by large ears that can rotate toward suspicious sounds. They have wide-set eyes, enabling them to focus on subtle movements while maintaining an excellent sense of depth perception.
Ammonites were once successful cephalopods that had a conical shell. Which cephalopod is the closest related to these ancestors?
Muscles found in bivalves which help to close the shell
The very well-developed system found in Class Cephalopoda
The external structure that distinguishes the nautilus from other cephalopods
Minor mollusk class which contains the tusk shell
Type of circulatory system found in all mollusks EXCEPT cephalopods
Which of the molluscan classes is the largest and most diverse?
In the open circulatory system of most mollusks, blood (hemolymph) is found where?
Which is the most complex Mollusca class?
A terrestrial mollusk which lacks a shell would belong to which of the following classes
The structure which secretes the shell.
"Toothed tongue" found in many mollusks and is used for scraping food
In cephalopods, which funnel-like structure helps to propel the animal by rapidly expelling water
The siphon, found in bivalves, through which waste is filtered OUT
Region of the mollusk body which contains most internal organs