Animal Classification

The simplest animals that have no real tissues or organs.

• Mollusks

• Sponges

• Vertebrates

• Flatworms

Jellyfish, sea anemones, corals, and hydras are all ________. They are soft-bodied, aquatic animals.

• Cnidarians

• Worms

• Sponges

Tags

NGSS.MS-LS1-1

There are three main worm groups: _______ worms, roundworms, and segmented worms. Which one is missing?

• Sponges

• Nematodes

• Flatworms

• Cnidarians

Tags

NGSS.MS-LS4-2

Like humans, all worms have this kind of symmetry. This type of symmetry is divided along only one plane.

• Asymmetrical

• Radial

• Bilateral

Worms that have simple digestive and nervous systems are called

• Roundworms (Nematodes)

• Flatworms

• Segmented worms

Tags

NGSS.MS-LS4-2

Snails, clams, and squids belong to which group (phyla)?

• Mollusks

• Echinoderms

• Arthropods

• Sponges

Echinoderms have a skeleton located on the INSIDE of their body. What is that type of skeleton called?

• Endoskeleton

• Exoskeleton

Sea cucumbers and sea stars are part of what group (phyla)?

• Mammals

• Mollusks

• Worms

• Echinoderms

Tags

NGSS.MS-LS4-2

What complex invertebrate make up more than half of the worlds animal species?

• Mollusks

• Worms

• Sponges

• Arthropods

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What makes birds' bones different and helps them reduce their weight.

• They have hallow bones

• They have less bones

• Their bones are cartilage

Tags

NGSS.MS-LS4-2