Which of these animals is a vertebrate?

• Spider

• Snail

• Worm

• Cat

Some but not all invertebrates

• have backbones.

• have shells.

• have no backbones.

• can make their own food.

An animal has fur and feeds milk to its young. How should this animal be classified?

• As an invertebrate

• As an amphibian

• As a mammal

• As a reptile

A scientist discovers a new organism. It has scales and uses lungs to breathe air. How will they classify this organism?

• As an invertebrate

• As a reptile

• As an amphibian

• As a fish

Which group do frogs belong to?

• Reptiles

• Birds

• Mammals

• Amphibians

Which one of these organisms is a reptile?

• Hawk

• Grasshopper

• Mushroom

• Crocodile

The skin of a reptile...

• is smooth and moist.

• is covered in scales.

• is covered with feathers.

• is covered with fur.

Which of the following characteristics is used when determining whether to place an animal in the vertebrate group or the invertebrate group?

• Ability to walk on two legs

• Presence of a spinal cord

• Method of respiration (lungs or gills)

• Flow of blood through the body

Which of the following questions could we ask to distinguish a mammal, such as a spider monkey, from a reptile, such as a crocodile?

• Does the animal have four limbs?

• Does the animal lay eggs to reproduce?

• Does the animal consume food for energy?

• Does the animal have a backbone?

Organisms are typically classified into groups based on

• features they have in common (the same)

• if they are dead or alive

• only if the produced seeds or not

• only if they have backbones or not