Question | Answer |
Pangaea split into a northern continent called Laurasia and a southern continent called ? | Gandwanaland |
Flowering plants called____?_____ evolved during the mesozoic era | Angiosperms |
Which period was dominated by fish? | Devonian period |
In what time period did great coal forming swamps exist in? | Pennsylvanian period |
We live in and mamals dominate the________ era | Cenozoic era |
Plants having seeds without fruit covering such as athe pine appeared in the Permian period and are called__________. | Gymnosperms |
What era was dominated by invertebrates, fish, and early amphibians and reptiles? | Paleozoic era |
What formed when volcanoes erupted gases? | Earths early atmosphere |
What super continent was in the late paleozoic and early Mesozoic era? | Pangaea |
What was the supercontinent that existed 750 million years ago? | Rondinia |
The oxygen in our atmosphere is __________ that was created 3 billion years ago | cyanobacteria |
Based on the fossil evidence of___________,scientist think some dino's cared for their young. | Maiasaura |
The earth is believed to be ________ years old. | 4.5 billion |
Which period is known for trilobites? | Cambrian |
Dino's lived in the ________ era | Mesozoic Era |
The first bird was the ________ which had feathers and claws. | Archaeopterys |
What is the process by which a particular organism survives b/c of a trait that makes it suited to the enviorment? | Natural Selection |
What animal evolved that did not need to return to the water? | Reptiles |
What animal with a backbone developed during the ordovicion period? | Vertebrates |
Early Cyanobacteria formed _________ or limestone reef line structures | stromatolites |
Life began when air molecules were struck by ________? | Lightning |
_________ live on land but must return to water? | Amphibians |
A Bird believed to have evolved from the dino ______? | Troodon |
What formed 3.8 billion years ago? | Oceans |
what was the longest era? | Pre-cambrian era |
When did amber form? | 30-90 million years ago |
Amber is also known as_______? | Succinite |
What does the modern word amber come from? | the Arabic word ambergris which is a waxy substance in the intestines of whales |
Is DR Amber too old or too young? | Too Young |
What breakes down over time? | DNA |
Is it impossible to get complete strains of Dino DNA? | YES |
What is the hypothesis of how dino's became extinct? | Extinction was caused by a huge impact that left a cloud around the earthblocking the sunlight killing cold blooded dino's. |
How long was the earth completely dark? | 1-3 months |
who were the most affected organisms? | cold blooded dino's |