What is a defining characteristic of vertebrates?

• Possession of a backbone or vertebral column

• Lack of a backbone

• Presence of spiny skin

• Simple body structure

Which of the following is NOT a vertebrate?

• Shark

• Bird

• Roundworm

• Mammal

What is a key aspect of animal taxonomy according to the passage?

• Body structure and function

• Color of the animal

• Size of the animal

• Diet of the animal

Which group of animals is known for having an exoskeleton and a highly developed nervous system?

• Vertebrates

• Invertebrates

• Cnidarians

• Echinoderms

What characteristic is used to classify fishes as vertebrates?

• Wet slippery scales and cold-blooded nature

• Presence of feathers

• Ability to fly

• Warm-blooded nature

The two classification of animals are __________________.

Vertebrates includes a wide range of animals such as fishes, amphibians, _______, birds, and mammals

Vertebrates are known for their complex structures and systems, which include an ___________ and a highly developed nervous system.

Invertebrates have unique features such as spiny skin and the absence of a ________.

_____________, such as sponges, have pores that serve as entry and exit points for food materials, showcasing their simple body structure.