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Phylum Mollusca test review Crossword
Down
:
2) reproduction in bivalves
4) used to jet the water so cephalopods can move swiftly
5) class that live in tubular shells open at both ends
8) used for locomotion
16) class which is called pelecypods
18) another name given to the shell
19) front part of foot which acts as a shovel and used for digging
21) hatched foot
22) secretes the shell/ sheath of tissue that surrounds the mantle cavity and most of body
23) twisting of gut and nervous system in gastropods
24) larval stage of mollusks
Across
:
1) three classes of mollusks that are most important to humans
3) class containing largest number of species and is most successful
6) "Mother of Pearl" layer
7) gills
9) middle strength layer
10) classes which do not contain radula
11) most specialized and advanced class of mollusks
12) reproduction in cephalopods
13) has many plates
14) outer protective layer
15) feeding techniques of scaphopods
17) where the fertilized eggs of cephalopods are deposited for maturation
20) feeding techniques of chitons
25) organ used to regulate the fluid balance in mollusks
26) formed on side of foot on gastropods and used for protection
27) a tongue-like scraper used for feeding in some mollusks
28) structure which holds the digestive, excretory, and reproductive organs in mass
29) feeding method of adult bivalves
30) why mollusks are commonly called shellfish
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