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Definition
a well supported testable explaination
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| what did darwin travel on? what ship... |
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Definition
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| what year was he born and where? |
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| during his travels, darwin made numerous observations and collected evidence that led him to propose a revolutionary hypothesis about ... |
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Definition
| teh way life changes over time |
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| what did he do when the ship anchored? |
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Definition
| collected animal and plant specimans |
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true or false?
he was born in 1809 |
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Definition
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true or false?
he was an english naturalist |
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Definition
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| how old was he when he began the voyage on the..... |
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| how long did the voyage last? where did it take him? |
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| the voyage lasted 5 yrs. and took him around the world |
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| what was darwin looking for? |
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Definition
| a scientific explaination for the diversity on earth |
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true or false
darwin made this observation:
an enormous number of species inhabit earth |
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Definition
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Term
true or false
darwin made this observation:
many organisms seem to be poorly suited to their environment
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true or false
darwin made this observation:
the same sorts of animals are always found in the same ecosystems in different parts of the world
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Definition
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true or false
darwin made this observation:
some species that lived in the past no longer live on earth
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Term
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Definition
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| fossils are the preserved remains of ancient organisms |
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Term
| as darwin studied fossils what new questions arose? |
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Definition
why had so many of these species disappeared
how were they related to living species |
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Term
| how did darwin explain differences in shell shape of tortoises from hood island and isabela island |
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Definition
differenet environments
= different adaptations |
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Term
| after he returned to england what hypothesis did darwin develop to explain his findings? |
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Definition
| similar animals living on different islands had once been members of the same species |
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Term
| how did hutton and lyell describe geological change? |
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Definition
hutton proposed that the earth is shaped by geologival forces that took place over extremely long periouds of time
he estimates earth to be millions not thousand of years old
lyell says the processes occurring now shaped earths geological features over long periods of time
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Term
| together what did hutton and lyell help scientists to realize? |
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Definition
| that earths geological features were caused by processes that occured in the past and that also occur now. |
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| humans toy with variation |
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Definition
| members of each species compete regularly to obtain nessesities of life |
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Definition
| ability of an individual to survive and reproduce in its enviroment |
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Definition
| inherited characteristic that improves an organisms chance of survival |
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Definition
| survival to reproduce most sucessfully |
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Definition
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| descent without modifitcation |
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Definition
| each living species descended with changes |
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