PGE 5th Grade Classification Review

An adult frog and a turtle are kept as pets in an aquarium together. The aquarium has water and land. The adult frog and turtle breathe through their lungs. The adult frog has soft, moist skin, while the turtle has hard, scaly skin. Using the passage diagram, which BEST classifies the frog and turtle?

• The frog and the turtle are both reptiles.

• The frog and the turtle are both amphibians.

• The frog is a reptile, while the turtle is an amphibian.

• The frog is an amphibian, while the turtle is a reptile.

Which box correctly identifies a mammal?

• Has hair, Gives live birth, Produces milk in milk ducts

• Has scales, Lays eggs, Produces toxins

• Has dry skin, Lays eggs, Has no backbone

• Has scales, Gives live birth, Produces toxins

Which animals do X and Y MOST LIKELY represent?

• X is a reptile and Y is an amphibian

• X is an amphibian and Y is a reptile

• X is a mammal and Y is a fish

• X is a fish and Y is a mammal

Which of the following correctly matches each vertebrate to its classification?

• bird → Y
  fish → W
  mammal  → Z
  reptile → X

• bird → Z
  fish → Y
  mammal  → W
  reptile → X

• bird → X
  fish → Z
  mammal  → W
  reptile → Y

• bird → W
  fish → X
  mammal  → Y
  reptile → Z

How are mammals different from other vertebrates?

• They use lungs to breathe.

• They have cartilage instead of bones.

• They produce milk to feed young.

• They do not hibernate.

A student is creating a model to classify organisms. Which three factors should she add to her model to classify vertebrate animals?

• how they move

• what they eat

• how they breathe

• what their body is covered with

• how their body temperature is controlled

The picture shows a snail. Which statement best explains why the snail is a vertebrate or invertebrate?

• The snail is a vertebrate because it has scaly skin.

• The snail is a vertebrate because it has a hard shell.

• The snail is an invertebrate because it does not have a backbone.

• The snail is an invertebrate because it can breathe through its skin.

Which characteristic should be placed at letter X on the model?

• Does it have fur?

• Does it eat meat?

• Does it have legs?

• Does it live in water?

Sam is hoping to classify an animal in the correct group. She knows that the animal has a backbone, is cold-blooded, and can live in the water. Which category below does the animal NOT belong to?

• birds

• fish

• reptiles

• amphibians

Select all of the invertebrates.

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