Animals as Living Things Vocabulary Grade 4

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Animals as Living ThingsVocabularyGrade 4
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An animal with a backbone is called a vertebrate.

• A bird is a vertebrate.
• A human is a vertebrate.

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Vertebrates are classified by how they control
their body temperature.

• Cold blooded vertebrates (fish, amphibians, and
  reptiles) get heat from outside the body.
• Warm blooded vertebrates (birds and mammals) use
  energy from food to keep body temperature
  constant.

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An animal without a backbone is called an
invertebrate.

• A worm is an invertebrate.
• An octopus is an invertebrate.

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Cnidarians are invertebrates that have poison
stingers on tentacles.

• Three types of cnidarians are
• Hydra
• Jellyfish
• Sea anemones

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Mollusks are soft bodied invertebrates.

• Examples of mollusks are
• Snails
• Clams
• Oysters
• squids

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Echinoderms are spiny skinned invertebrates.

• Echinoderms are identified by
• A star design
• Spiny skin
• An internal supporting structure called an
  endoskeleton.

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Arthropods make up the largest invertebrate group.

• Arthropods are identified by a hard skeleton on
  the outside of their bodies called an
  exoskeleton.
• Examples are
• Arachnids
• Centipedes and millipedes
• Crustaceans
• Insects

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Show what you know.
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• What are animals with backbones, such as humans,
  called?

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• What are animals with backbones, such as humans,
  called?
• vertebrates

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• What type of vertebrate gets its heat from
  outside its body?

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• What type of vertebrate gets its heat from
  outside its body?
• Cold blooded vertebrate

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• What is an animal without a backbone called?

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• What is an animal without a backbone called?
• An invertebrate

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• ___________ are invertebrates that have poison
  stingers on tentacles.

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• Cnidarians are invertebrates that have poison
  stingers on tentacles.

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• ________are soft bodied invertebrates.

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• Mollusks are soft bodied invertebrates.

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• __________ are spiny skinned invertebrates.

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• Echinoderms are spiny skinned invertebrates.

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• ___________ make up the largest invertebrate
  group.

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• Arthropods make up the largest invertebrate group.