symmetry, body regions, and vocab

Front

What is symmetry?

Back

Symmetry refers to a balanced and proportional arrangement of parts on either side of a dividing line or around a central point.

Front

What are the two main types of symmetry in animals?

Back

The two main types of symmetry in animals are bilateral symmetry and radial symmetry.

Front

Define bilateral symmetry.

Back

Bilateral symmetry is when an organism can be divided into two identical halves along one plane.

Front

Define radial symmetry.

Back

Radial symmetry is when an organism can be divided into similar halves around a central axis.

Front

What is asymmetry?

Back

Asymmetry is the absence of symmetry; an organism cannot be divided into identical halves.

Front

What are invertebrates?

Back

Invertebrates are animals that do not have a backbone.

Front

Give an example of an invertebrate.

Back

Examples of invertebrates include jellyfish, earthworms, and sponges.

Front

What are vertebrates?

Back

Vertebrates are animals that have a backbone.

Front

Give an example of a vertebrate.

Back

Examples of vertebrates include mammals, birds, reptiles, amphibians, and fish.

Front

What is the function of the gizzard in an earthworm?

Back

The gizzard grinds food, helping in the digestion process.