| A | B |
|---|
| exoskeleton | provides covering and support |
| tropical rain forest | has consistent warm, stable temperatures |
| metamorphosis | occurs in certain insects and other animals |
| taiga | has few shrubs because of vast amount of shade |
| tundra | has vast amounts of permafrost |
| molting | completed many times in incomplete metamorphosis |
| invertebrates | insects are all ________________ |
| deciduous forest | especially found in Europe and North America |
| seasons | caused by the tilt of the earth's axis |
| grasslands | insufficient rainfall for trees |
