Characteristics of Phyla

Which of the following is a characteristic of Arthropods?

• Soft body not divided into segments

• Exoskeleton

• Hollow nerve chord

• Internal segments with repeated organs.

Molluscs usually have a ______.

• Spine

• Shell

• Exoskeleton

• Antennae

What is a defining feature of Chordata?

• Exoskeleton

• Antennae

• Spine/backbone

• Tentacles

Annelids are known for having ______.

• Paired, jointed legs

• Internal segments with some repeated organs

• A hollow nerve chord

• A shell.

Which phylum is characterized by having a hollow nerve chord?

• Arthropods

• Molluscs

• Chordata

• Annelids

Arthropods typically have ______.

• No legs

• A spine

• Paired, jointed legs

• Soft bodies with an obvious head.

Define exoskeleton.

• A) A soft body not divided into segments

• B) A hard outer structure that provides support and protection

• C) A hollow nerve chord

• D) Internal segments with repeated organs.

Which of the following is NOT a characteristic of Molluscs?

• A) Most have a shell

• B) Soft body, not divided into segments

• C) Paired, jointed legs

• D) May have tentacles.

Chordata are known for having a ______.

• Shell

• Hollow nerve chord

• Exoskeleton

• Tentacles

Provide an example of a phylum that has no exoskeleton.

• Arthropods

• Molluscs

• Chordata

• Annelids