| A | B |
|---|
| Function of endocrine system | produce hormones to regulate body |
| Reasons for many traits in humans | sexual reproduction and mutations |
| What happens to fetus between fertilization and birth | organs and organ systems develop |
| What is an infectious disease | A disease caused by microorganisms |
| DNA is responsible for... | passing traits to next generation |
| Cancer occurs when | cells divide abnormally |
| The sun.. | rises in the east/sets in the west |
| The reproductive system makes | sperm and egg cells |
| How does water vapor turn to rain | condensation |
| The hydrosphere is | water that covers portions of the earth's crust |
| Law of Superposition | Layers of sediment turn to rock with oldest on the bottom |
| Fossils are made by | Organism dies, is covered by sediment which turns to rock |
| Soil is | a mixture of rock and organic material |
| Mutations | cause genetic disorders |
| A pedigree is | a chart that tracks a trait through members of a family |
| Time zones are caused by | The Earth's rotation |
| Check what for different time zones | longitudinal lines |
| Burning wood to ash changes it like | iron turning to rust when oxygen is in contact with it |
| Weathering and erosion are caused by | gravity |
| Genes contain | DNA |
| Chloroplasts | where photosynthesis takes place |
| Mutation | a genetic abnormality in an organism |
| One celled organisms reproduce by | cell division |
| Cell walls are found only in | plants |
| Cell is | the basic unit of structure and function in all organisms |
| Sperm | male sex cell |
| Egg | female sex cell |
| Traits | determined by a pair or many pairs of genes |
