Bio test studying Flashcards
what was the percambrian era like?
teh precambrain era was barren and like a desert and was called the age of early life.
What is an anatomical record?
Comparing body structures to learn about evelution
What is a fossil record?
WHen newer rocks start building over younger rocks preserving the fossil whihc shows us the series of orginizams who lived on earth.
What are Homologous structures?
Structures taht came from the same origin.
What does homo and logous mean?
Homo means same and logous means info
What are analogous structures?
They look simmaler but have a different structure and development.
What are vestigal structures?
Structures that used to be needed for their ancestors but now is not as needed.
What was teh paleozoic era like?
The paleozoic era had huge swampy forests that covered northern continents and it was called the age of fish.
What was the mezizoic era like?
Called teh age of reptiles and rocky mountians formed and it was when pangea seperated into modern continents.
What was the cenezoic era like?
It was called the age of mammals and there were changes of weather.Ended with astroid hitting the earth.
What were some events that led Charles darwin to his theory?
A trip to teh galapagos islands where he saw birds with blue feet and giant tortusis which gave him evidence for his theory.
