Mammals (C)

What are the two main categories of living things in the world?

• Plants and animals

• Invertebrates and vertebrates

• Mammals and birds

• Fish and reptilesmammalmallma

What is the classification of animals based on their traits or characteristics called?

• Classification

• Categorization

• Grouping

• SortingSortingani

How many different groups have scientists classified all vertebrates into?

• Three

• Four

• Five

• Six

Which of the following groups of animals are warm-blooded?

• Birds and mammals

• Fish and reptiles

• Reptiles and mammals

• Fish and birdsbird

What is one characteristic of mammals?

• They lay eggs

• They have gills

• They have four limbs

• They are cold-blooded

How do mammals generate their body heat?

• Through the air they breathe

• Through the water they drink

• Through the food they eat

• Through the sunlight they absorb

What is the purpose of fur for mammals that hibernate?

• To keep them cool in the winter

• To provide camouflage in their environment

• To help them swim in water

• To keep them warm in the winter

Which of the following mammals lay eggs?

• Dogs and cats

• Platypus and echidna

• Bears and squirrels

• Whales and dolphins

What do mammals use to breathe?

• Gills

• Lungs

• Fins

• Trachea

How many limbs do mammals that live on land have?

• Two arms and two legs

• Four arms

• Four legs

• Six legs