ESL 5 Science / 1.4 Classifying Animals

ESL 5 Science / 1.4 Classifying Animals

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A type of body plan that has no definite shape.

Multiple Choice

The simplest animals are _____. They are without real tissues and have an asymmetrical body plan.

• arthropods

• cnidarians

• mammals

• sponges

Multiple Choice

Jellyfish and hydras are _____. They possess a mouth and muscle tissue and are radial symmetrical.

• cnidarians

• echinoderms

• fish

• reptiles

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Cnidarians have this kind of symmetry.

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Worms have this kind of symmetry because they can be divided along only one plane.

Multiple Choice

Worms that have flat bodies with one body opening and simple eyes are called _____.

• amphibians

• flatworms

• roundworms

• segmented worms

Multiple Choice

Worms that have simple digestive and nervous systems are called _____.

• cnidarians

• mollusks

• roundworms

• segmented worms

Multiple Choice

Clams and squids are _____. They have bilateral symmetry, a muscular foot, a mantle, and several specialized organs.

• birds

• echinoderms

• mollusks

• reptiles

Multiple Choice

Sea stars and sea cucumbers are echinoderms. They have _____ feet and a water pressure system that helps them feed, breathe, and move.

• bony

• divided

• hollow

• tube

Multiple Choice

Crabs and insects belong to the largest animal group on Earth, the _____ phylum.

• amphibian

• arthropod

• mollusk

• sponge

Multiple Choice

There are three kinds of fish: jawless, such as the lamprey and hagfish; _____, such as sharks and skates, and bony fish.

• cartilage fish

• cold-blooded

• eggs

• marsupials

Multiple Choice

Frogs, toads, and salamanders are _____.

• amphibians

• arthropods

• echinoderms

• fish

Multiple Choice

Lizards, snakes, turtles, and alligators are reptiles. They are _____, which means that their body temperature is not steady.

• cold-blooded

• mirror images

• vertebrates

• warm-blooded

Multiple Choice

Birds are designed for flying: they are warm-blooded and have _____ and feathers that are light and strong.

• bony fish

• eggs

• hollow bones

• tube feet

Multiple Choice

Animals that are warm-blooded and have hair are called _____.

• birds

• invertebrates

• mammals

• marsupials

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A mammal that lays eggs.

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A koala is one. It gives birth to partially developed offspring.

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Lions, whales, and humans are

. Their offspring develop within the mother.