1. Study Guide Answers

2. What is classification
Sorting into groups based on similarities and differences

3. Why do scientists classify plants and animals
To study plants and animals and understand the living world

4. How are animals classified
How they reproduce
Body structures

5. What are vertebrates
Animals with a backbone and skeleton

6. What are invertebrates
Animals that do not have a backbone.
Invertebrates have an exoskeleton or shell.

7. What are the 5 types of vertebrates
Fish, amphibians, reptiles, mammals, birds

8. What are characteristics of fish
Cold-blooded
Breathe with gills
Have scales
Live in water
Have eggs

9. What are gills
Special organs fish use to breathe

10. What are characteristics of amphibians
Cold blooded
Smooth, moist skin
Begin life in water and eventually live on land
Live near water
Lay eggs

11. What are characteristics of reptiles
Cold blooded
lungs
Rough skin with scales or hard plates
Live on land
Lay eggs

12. How are amphibian and reptile eggs different
Reptiles have eggs that are hard and tough
Lay eggs on land
Amphibian eggs are softer
Lay eggs in water

13. What are characteristics of birds
Warm blooded
Lay eggs
Have feathers

14. What are characteristics of mammals
Warm blooded
Have lungs
Have fur or hair
Live birth

15. How are plants classified
How they reproduce
How they transport materials inside the plant

16. Are mushrooms a type of plant? Why or why not?
No, they are decomposers

17. What are characteristics of vascular plants
Tubes that transport water and sugars
Stems, leaves

18. What are characteristics of nonvascular plants
Grow close to the ground
No roots
No tubes
Grow close to water source

19. What two ways do plants reproduce
Seeds and spores

20. Describe ferns
Vascular plants that reproduce using spores

21. What are characteristics of deciduous plants
Leaves fall off every year
Leaves change colors
Have broad leaves

22. What are coniferous plants
Plants that have cones
Leaves do not fall off
Most are evergreen

23. What are angiosperms
Seeds that are protected by flowers or fruit

24. What are gymnosperms
Seeds that are in a cone or in hard berries