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Ch 9, 6th Grade
Test Description: Intro to animals
Instructions: Answer all questions to get your test result.
1) All animals are
A
all of the above
B
multicellular
C
unable to make their own food
D
begin life as a zygote
2) What percent of all known animal species is made up by invertebrates?
A
50%
B
95%
C
71%
D
34%
3) Adaptations that include senses, skeletons, and circulation are called
A
functional adaptations
B
constructional adaptations
C
structural adaptations
D
behavioral adaptations
4) The arthropod group that has 8 legs is
A
millipedes and centipedes
B
insects
C
arachnids (spiders, scorpions)
D
crustaceans (lobsters, crabs)
5) Which arthropod part is where the legs are attached?
A
thorax
B
head
C
abdomen
6) Which kind of symmetry does a penguin have?
A
bilateral
B
radial
C
asymmetry
7) All members of this invertebrate group filter food and can only move when they are young
A
segmented worms
B
sponges
C
cnidarians
D
mollusks
8) This group's name is Annelida, which means little rings.
A
segmented worms
B
flatworms
C
echinoderms
D
roundworms
9) Have tube feet that help them move
A
cnidarians
B
arthropods
C
mollusks
D
echinoderms
10) Some have shells; others do not
A
roundworms
B
mollusks
C
arthropods
D
cnidarians
11) Have a cuticle that is replaced in the molting process
A
roundworms
B
flatworms
C
segmented worms
D
arthropods
12) Which is NOT a group of fish?
A
boneless
B
sharks and rays
C
bony
D
jawless
13) A turtle would be an example of a
A
mammal
B
fish
C
reptile
D
amphibians
14) Birds do not have/do what to allow them to fly
A
crystallize urine
B
wings and strong chest muscles
C
an air bladder
D
hollow bones
15) T/F: Chordates can be invertebrates.
A
false
B
true
16) Which is NOT a characteristic of a chordate?
A
tail
B
nerve cord
C
notochord
D
backbone
17) What does an open circulatory system involve?
A
organs producing their own blood
B
a heart pumping blood into an open chamber
C
blood vessels that leak out onto the body
D
none of the above
18) An inherited trait that increases an organism's chances of surviving and reproducing in its environment
A
molting
B
endoskeleton
C
parasite
D
adaptation
19) The system scientists use to organize living things is called
A
organization
B
taxonomy
C
taxation
D
taxidermy
20) Adaptations that help a species survive or maintain homeostasis, like successful reproduction, are called
A
behavioral adaptations
B
structural adaptations
C
functional adaptations
*select an answer for all questions
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