Vertebrate

The video tutorial introduces vertebrates, animals with an internal skeleton and backbone, and explains their classification into five classes: mammals, reptiles, amphibians, birds, and fish. Each class is described with examples and characteristics. The video also touches on invertebrates, animals without a backbone, highlighting insects as an example. It concludes with a question encouraging viewers to think about why vertebrates typically grow larger than invertebrates.

What is the primary characteristic that defines a vertebrate?

• Living in water

• Having an internal skeleton and backbone

• Being able to fly

• Having an outer skeleton

Which of the following is NOT a characteristic of mammals?

• Being a member of vertebrates

• Covered with fur or hair

• Laying eggs with hard shells

• Feeding young with mother's milk

Which class of vertebrates is known for having dry skin covered by scales?

• Amphibians

• Birds

• Reptiles

• Mammals

What is a key difference between vertebrates and invertebrates?

• Vertebrates have an internal skeleton

• Vertebrates have an outer skeleton

• Invertebrates can breathe underwater

• Invertebrates have a backbone

Why might vertebrates typically grow larger than invertebrates?

• They are covered with scales

• They have an internal skeleton that supports larger body sizes

• They live in water

• They have an outer skeleton