Invertebrates

Front

What are invertebrates?

Back

Invertebrates are animals that do not have a backbone or spinal column.

Front

What is the main difference between cnidarians and sponges?

Back

Cnidarians have cells that are organized into tissues, while sponges do not.

Front

What does the term 'Porifera' mean?

Back

Porifera means 'having holes', referring to the porous structure of sponges.

Front

What type of digestive system do roundworms have?

Back

Roundworms are considered the simplest organisms to have a complete digestive system.

Front

What is an exoskeleton?

Back

An exoskeleton is a hard outer structure that provides support and protection to certain animals, such as insects and crustaceans.

Front

What is the exoskeleton of arthropods made of?

Back

The exoskeleton of arthropods is primarily composed of chitin.

Front

What is the hard skeleton of coral made of?

Back

The hard skeleton of coral is composed of calcium.

Front

What are the three main types of worms?

Back

The three main types of worms are flatworms, roundworms, and segmented worms (annelids).

Front

What is the primary characteristic of cnidarians?

Back

Cnidarians are known for their stinging cells called cnidocytes, which they use for capturing prey.

Front

How do sponges obtain food?

Back

Sponges obtain food by filtering water through their porous bodies and trapping small particles.