WorksheetsSandy Beach Organisms: Inverts
Total questions: 32
Worksheet time: 18mins
Name
Class
Date
1.
Molluscs are able to extend their body structures, like tentacles, because of their
a)
opposing muscle groups
b)
tendons & ligaments
c)
muscles attached to bones
d)
hydraulic skeleton
2.
What type of circulatory system do most Molluscs have?
a)
Open
b)
Closed
3.
What is the meaning of Gastropod?
a)
Soft-bodied
b)
Stomach foot
c)
Head-footed
d)
Two-shelled
4.
What structure has teeth and is used by gastropods to eat?
a)
Tentacles
b)
Radula
c)
Mantle
d)
Filter feeder
5.
Which group of Molluscs does the picture belong to?
a)
Gastropod
b)
Bivalve
c)
Cephalopod
6.
What Mollusc group does the snail belong to?
a)
Gastropod
b)
Bivalve
c)
Cephalopod
7.
What Mollusc group does the nautilus belong to?
a)
Bivalves
b)
Gastropods
c)
Cephalopods
d)
Cnidarians
8.
How do Bivalves eat?
a)
Filter feeders
b)
Radula
c)
Tentacles
9.
Which class of Molluscs include clams, scallops, and mussels?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
10.
Which class of Molluscs include squid, cuttlefish and octopus?
a)
Gastropods
b)
Bivalves
c)
Caphalopods
11.
Which part of the Mollusk body is the tissue covering the body and secretes the shell?
a)
Mantle
b)
Trochophore
c)
Foot
d)
Visceral Mass
12.
The oldest and thickest part of the bivalve shell is called the
a)
periostracum
b)
operculum
c)
umbo
d)
valve
13.
What does the prefix bi- mean?
a)
two
b)
leaf
c)
shell
d)
foot
14.
In what type of environment do MOST mollusks live?
a)
Soil
b)
Freshwater
c)
Marine
d)
Terrestrial
15.
Which part of the Mollusk body is specialized for burrowing, feeding, and movement?
a)
trochophores
b)
visceral mass
c)
mantle
d)
foot
16.
Which class of Mollusks include organisms that have camera-like eyes similar to humans?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
17.
Which class of Mollusks all have tentacles?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
18.
Which class of Mollusks have the most advanced nervous system?
a)
Gastropods
b)
Bivalves
c)
Cephalopods
19.
What type of body do all Mollusks have?
a)
Segmented
b)
Soft
c)
Rigid
d)
Clear
20.
What do the rings on the clam shell indicate?
a)
species
b)
age
c)
size
d)
genus
21.
Why do arthropods have to shed their exoskeletons?
a)
it wears out
b)
they don't shed
c)
it limits the size they can grow
d)
to go from water to land environments
22.
What phylum are crustaceans a part of?
a)
Arachnids
b)
Arthropods
c)
Animals
d)
Invertebrates
23.
What are the body regions of a crustacean called?
a)
Head, Thorax, Abdomen
b)
Head, Cephalothorax, Abdomen
c)
Head, Body, Stomach
24.
What is molting?
a)
The process in which arthropods reproduce
b)
The process in which arthropods shed their outer covering and grow a larger one.
c)
The process in which larval forms develop into adult forms
d)
The process in which arthropods breathe
25.
What two characteristics do all Arthropods have?
a)
two legs per body segment
b)
jointed legs and a cephalothorax
c)
three body segments and metamorphosis
d)
jointed legs and segmented bodies
26.
What type of circulatory system do Arthropods have?
a)
closed
b)
open
27.
What type of skeleton do Arthropods have?
a)
Endoskeleton made of chitin
b)
Hydrostatic skeleton
c)
Exoskeleton made of calcium carbonate
d)
Exoskeleton made of chitin
28.
Out of 1-2 million crab eggs, how many will survive to maturity?
a)
1-2
b)
10-20
c)
100-200
d)
1000-2000
29.
How much water can an adult oyster filter per day?
a)
1 gallon
b)
25 gallons
c)
50 gallons
d)
100 gallons
30.
Blue crabs have a broad diet which includes dead plants and animals, this means they are____________.
a)
scavengers
b)
decomposers
c)
carnivores
d)
herbivores
31.
The crab pictured is
a)
Male
b)
Female
32.
Fiddler crabs breathe with ______________.
a)
lungs
b)
gills
c)
lungs and gills
d)
they don't breathe
100 %
