Question

• Butterflies are vertebrates.

• Mice are invertebrates.
• Earthworms are vertebrates.
• Lobsters are invertebrates.

Answer 1

• Butterflies are actually invertebrates because they lack a backbone or vertebral column.
• Mice are vertebrates because they have a backbone or vertebral column.
• Earthworms are invertebrates because they lack a backbone or vertebral column.
• Lobsters are also invertebrates because they lack a backbone or vertebral column.