Match each extinction to its appropriate characteristic. 1. cretaceous-tertiary possibly caused by forest grow on earth's land surface 2. end triassic possibly caused by massive rifting of earth's surface 3. permian-triassic the earliest mass extinction on record 4. late devonian worst mass extinction in earth's history 5. ordovician-silurian killed off the dinosaurs

Mass extinction refers to the procedure in which a huge number of species gets extinct suddenly.  

The following are the correct matches of the events taken place in the mentioned time period:  

1. Cretaceous-Tertiary: The mass extinction of dinosaurs took place.  

2. End-Triassic: Possibly resulting due to massive rifting of the surface of the Earth.  

3. Permian-Triassic: It is considered the worst mass extinction in the history of the Earth.  

4. Late Devonian: It is possibly a result of the growth of forest on the land surface of the Earth.  

5. Ordovician-Silurian: The earliest mass extinction took place at this time.  

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)