Term
| Mussels and squids belong to the phylum _______________, while sea cucumbers and sand dollars belong to the phylum __________________. |
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Definition
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Term
| What are the four major characteristic features of molluscs? |
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Definition
a protective shell
a mantle which may secrete the shell
a visceral mass (located unger gills) that houses the major internal organs (including gonads and intestines)
and a foot for locomotion |
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Term
| What is the phylum and class of a clam? |
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Definition
Phylum: Molusca
Class: Bivalvia |
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Term
| On a clam, which is the anterior side, the shorter side in reference to the umbo, or the longer side in reference to the umbo? |
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Definition
| the shorter side is the anterior side (usually left side if umbo is pointing away from you) |
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Term
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Definition
a complex chewing apparatus located or the oral (bottom) side of a sea urchin, and is comprised of 5 tooth-like plates that point inwards, connected internally. This apparatus is used for chewing. |
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Term
| What method of food acquisition do sea cucumbers use? |
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Definition
These filter feeding echinoderms have tube feet near the mouth which are modified into feathery tentacles that the sea cucumbers use to capture decaying matter suspended in the surrounding water. |
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Term
| Rotifers exhibitparthenogenesis— what does that mean? |
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Definition
Parthenogenesis is a type of asexual reproduction in which a species consists of only females that produce more females from unfertilized diploid eggs. |
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Term
| What is the phylum and class of a sea cucumber? |
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Definition
Phylum: Echinodermata
Class: Holothuroidea |
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Term
| What is the visceral mass of a clam and where is it located? |
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Definition
the visceral mass is what contains all of the clam's internal organs such as its interstines and gonads
it is located under under the mantle and gills |
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Term
| what is the name of the two muscles inside a clam that hold it shut? |
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Definition
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Term
| What is the name and phylum of this organism? |
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Definition
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Term
| Rotifers live in ___ water and they 're eating habits are ____ |
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Definition
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Term
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Definition
a rotifers inner mouth (located right behind the mouth)
a pharyngeal apparatus which bears teeth-like structures (trophi) that grasp, chew, or grind food particles |
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Term
In a clam the mantle serves what function?
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Definition
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Term
| In what animal would there be a madreporite/seive plate? What is its function? Where on the animal is it located? |
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Definition
a starfish
vascular system, filters out waste - moves tube feet for locomotion
aboral side with anus |
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Term
| phylum and class of starfish? |
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Definition
| echinodermata, asteroidea |
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Term
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Definition
in sea cucmber
unique paired structures that are highly branched outgrowths of the hindgut, through which sea water is pumped in and out by muscular contractions of the anus
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Term
| was is the sea cucumber's feeding habits? |
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Definition
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Term
| How many tentacles does a squid have? How many arms? |
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Definition
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Term
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Definition
body tube encircling the visceral mass froming a hollow chamber in which water is collected and used for propulsion
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Term
| How many fins does a squid have? |
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Definition
| 2 fins at the top of the head |
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Term
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Definition
a grain of sand or parasite get trapped between the mantel and shell, causing the clam’s mantle to secrete layers around it
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Term
| function of incurrent (ventral) and excurrent (dorsal) siphons? |
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Definition
| a clam uses these to bring in and expel water |
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Term
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Definition
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Term
| Where are the eyespots located on a starfish and what is their function? |
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Definition
| at the end of each arm, they detect light |
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Term
| What phylum and class are sea urchins and sand dollars in? |
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Definition
Phylum: Echinodermata
Class: Echinoidea |
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Term
| What kind of circulatory system do Bivalvia have? |
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Definition
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Term
| what is the phylum, subphylum, order and class of a crayfish? |
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Definition
Phylum: Arthropoda
Subphylum: Crustacea
Order: Decapoda
Class: Malacostraca |
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Term
| what is the name of a crayfish's front claws? |
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Definition
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Term
A crayfish has one pair of ___ for chewing food, two pairs of ____ for holding food and bailing water from the gill chamber, and three pairs of ___ for holding, tasting and manipulating food
all are present near the mouth |
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Definition
A crayfish has one pair of mandibles for chewing food, two pairs of maxillae for holding food and bailing water from the gill chamber, and three pairs of maxillipeds for holding, tasting and manipulating food
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Term
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Definition
pointed structure extending anteriorly from the cephalothorax of a crayfish
(pointy thing on its head) |
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Term
| what is the difference between male and female crayfish? |
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Definition
| Females are typically larger and in the males have copulatory swimmerets |
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Term
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Definition
| in male crayfish, the first two pairs of larger, club-shaped swimmerets that are modified for transferring sperm to the female during copulation |
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Term
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Definition
primitive kidney of a crayfish;
the crayfish's excretory organs that get rid of liquid waste;
long folded, tubular structures compacted into a glandular mass, located at the most anterior portion of the head, through which waste and excess water pass in the form of concentrated urine |
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Term
| How many wings does a grasshopper have? |
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Definition
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Term
| Phylum and class of a snail? |
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Definition
Phylum: Molusca
Class: Gastropoda |
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Term
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Definition
concentration of sense organs in one region of the body
ex. all in the base of the mantle in octopus |
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Term
| What are two animals we have looked at in class that have a crop? What is a crop? |
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Definition
Bird and grasshopper
A crop is a structure used for food storage before digestion
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Term
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Definition
the anterior end of a rotifer, crowned with a ring of cilia used to swim and sweep food into the mouth via ciliary action (rhythmic beating or wheel-like motion) |
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