I WONDER - What Are Invertebrates?

The video explains the structure of the human spine, focusing on the column of bones known as vertebrae. It distinguishes between animals with a backbone, called vertebrates, and those without, known as invertebrates. Notably, only 3% of animals on Earth are vertebrates, highlighting the prevalence of invertebrates.

What is the human spine primarily composed of?

• Ligaments

• Vertebrae

• Cartilage

• Muscles

What term is used to describe animals that possess a backbone?

• Mammals

• Invertebrates

• Reptiles

• Vertebrates

Which of the following animals would be classified as an invertebrate?

• Dog

• Jellyfish

• Cat

• Bird

What percentage of animals on Earth have a backbone?

• 10%

• 50%

• 25%

• 3%

Why are most animals classified as invertebrates?

• They are warm-blooded

• They live in water

• They lack a backbone

• They have a complex nervous system