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Molluks, Arthropods, And Echinoderms
Test Description: 6th grade- chapter 2
Instructions: Answer all questions to get your test result.
1) A squid is an example of a(n)
A
octopus
B
arachnid
C
cephalopod
D
bivalve
2) In complete metamorphosis, an insect goes through all of the following stages except
A
larva
B
adult
C
nymph
D
pupa
3) Crustaceans are the only arthropods that have
A
appendages
B
two pairs of antennae
C
an exoskeleton
D
two body sections
4) Which of the following is not a characteristic of mollusks?
A
they have a mantle
B
they have radial symmetry
C
they have gills
D
they are invertebrates
5) Spiders, ticks, and scorpions are all
A
parasites
B
gastropods
C
arthropods
D
herbivores
6) Which of the following is not a body section of an insect?
A
thorax
B
radula
C
abdomen
D
head
7) Which of the following is not a way in which mollusks gather food?
A
using radulas to collect food
B
using tube feet to pry apart bivalves
C
using gills to collect food
D
using tentacles to detect and grab prey
8) If an animal has one pair of antennae and six legs, it could be a(n)
A
insect
B
crustacean
C
arachnid
D
octopus
9) A mollusk’s ________________________ covers its internal organs and produces its shell if it has one.
A
pearl
B
foot
C
circulatory system
D
mantle
10) During gradual metamorphosis, an egg hatches into a stage called a ________________________.
A
nymph
B
adult
C
larva
D
pupa
11) The skin of most echinoderms is supported by a spiny internal skeleton, called a(n) ________________________.
A
endoskeleton
B
bumpy plates
C
exoskeleton
D
radial symmetry
12) T or F: If a mollusk has two shells, it is a gastropod
A
True
B
False
13) T or F: The wings of an insect are attached to its abdomen
A
False
B
True
14) T or F: Tube feet, which most echinoderms use to grasp objects, move around, and catch food, are part of the circulatory system.
A
True
B
False
15) T or F: An echinoderm has radial symmetry.
A
False
B
True
16) How many shells do gastropods have
A
two
B
only one shell inside of their bodies
C
one or none
D
always no shell
17) egg--nymph--adult are the stages in which kind of metamorphosis?
A
gradual
B
complete
18) if you saw an animal with 3 body segments, 2 pairs of wings, 6 legs, and one pair of antennae..what would you classify it as?
A
insect
B
arthropod
C
crustacean
D
echinoderm
19) which is the correct order for complete metamorphosis?
A
egg--larva--pupa--adult
B
egg--nymph--pupa--adult
C
egg--pupa--larva--adult
D
egg-larva--adult--pupa
20) when an arthropod gets rid of its old shell and grows a new bigger one, this process is called
A
growing
B
hatching
C
molting
D
shedding
*select an answer for all questions
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