Chapter 4: Animal groups

Question 1

Name the five groups of animals with backbones:

Answer 1

1. Mammals
2. Brids
3. Reptiles
4. Fish
5. Amphibians

Question 2

We can classify animals into different groups according to their ______________

Answer 2

characteristics

Question 3

Unique characteristics of mammals:

Answer 3

1. They have hair on their bodies
2. Female mammals nurse their young with milk
3. They breathe with lungs

Question 4

Unique characteristics of birds:

Answer 4

1. They have feathers on their bodies
2. They have a beak
3. They have a pair of wings

Question 5

Unique characteristics of reptiles

Answer 5

1. They have dry skin and hard scales
2. They breathe with lungs

Question 6

Unique characteristics of fish:

Answer 6

1. They breathe through gills
2. They have fins top help them swim
3. Most fish have scales on their wet bodies

Question 7

Unique characteristics of Amphibians

Answer 7

1. they breathe through gills when they are young. They breathe with lungs when they become adults.
   2 They have wet skin and no scales.

Question 8

Animals without backones

Answer 8

insects, spiders

Question 9

Unique characteristics of insects

Answer 9

1. Their bodies are divided into 3 parts: head, thorax and abdomen
2. They have three pairs of legs
3. Most of them have a pair of antennae on their heads
4. Some of them have wings