SCIENCE
MISSING WORDS
mollusks
warm
arthropods
Invertebrates
reptiles
mammals
six n
Five
vertebrates
fish
squid
octopus
Worms
lungs
amphibians
Exoskeleton
cold
Insects
birds
gills
an
acand
1. An animal that has backbone is called invertebrates and
animal without backbone is called an
yertebrates
2. There are - main groups of vertebrates and
main
groups of invertebrates.
3. The five main groups of vertebrates are m
r
f
a
b
like ants and bees are invertebrates.
5. Slugs and snais are
that live on land and
o
S
and cuttlefish are mollusks that
live in the sea.
6. Mammals breathe using
ang breathe using
4.
7. Most reptiles are and fish are
-blooded.
8. Mammals and birds are
-blooded.
9. Scorpions, spiders, crabs, and insects are called
because they have hard bodies called an
and
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