credit recover biology
Credit Recovery Biology Unit 6: History of Life on Earth
Unit 6 section 3 part 1: The Paleozoic: Time of Ancient Life
The Paleozoic: The Time of Ancient Life
The term Paleozoic means the time of ancient ______________.
Cambrian Explosion is the sudden appearance of a tremendous array of ___________life.
The Paleozoic ended in the greatest mass extinction in the world________.
The Earth’s crust is made of various-sized ___________.
Plates are in motion relative to each other at a rate of few inches per _____.
The first truly terrestrial vertebrates are the ___________.
The Paleozoic: The Cambrian Explosion
Cambrian period is one of the Paleozoic____________________.
During the Cambrian period, living things developed hard _____________.
These hard structures such as shells and exoskeletons formed the _______.
Trilobites were members of the phyla _____________and were dominant animal group during Cambrian.
Archaeocyathids are reefs-building ____________.
Archaeocyathids, an extinct group of sponges dominated the reefs of __________sea.
The Burgess Shale Fauna: Snapshot of the Cambrian World The Canadian rocks with rare and exquisitely deposit of fossils are known as___________ ___________.
Walcott, an American Paleontologist discovered over 50,000 ___________in the Burgess Shale.
Modern studies reported approximately 125 _______________.
The oldest representative of the phylum __________.
One of the most common Burgess animals was the _______________marella with jointed appendages.
The delicate looking arthropod marella are referred to as “lace ________.”
Along with marella and other arthropod trilobites have hard____________.
The Ordovician Ordovician period was characterized by diversification among the _____________.
During the Ordovician period certain green algae moved towards the ___________.
Bryozoans are a group of organisms sometimes known as “moss _______________.”
Brachiopod shells are among
Unit 6 section 3 part 1: The Paleozoic: Time of Ancient Life
The Paleozoic: The Time of Ancient Life
The term Paleozoic means the time of ancient ______________.
Cambrian Explosion is the sudden appearance of a tremendous array of ___________life.
The Paleozoic ended in the greatest mass extinction in the world________.
The Earth’s crust is made of various-sized ___________.
Plates are in motion relative to each other at a rate of few inches per _____.
The first truly terrestrial vertebrates are the ___________.
The Paleozoic: The Cambrian Explosion
Cambrian period is one of the Paleozoic____________________.
During the Cambrian period, living things developed hard _____________.
These hard structures such as shells and exoskeletons formed the _______.
Trilobites were members of the phyla _____________and were dominant animal group during Cambrian.
Archaeocyathids are reefs-building ____________.
Archaeocyathids, an extinct group of sponges dominated the reefs of __________sea.
The Burgess Shale Fauna: Snapshot of the Cambrian World The Canadian rocks with rare and exquisitely deposit of fossils are known as___________ ___________.
Walcott, an American Paleontologist discovered over 50,000 ___________in the Burgess Shale.
Modern studies reported approximately 125 _______________.
The oldest representative of the phylum __________.
One of the most common Burgess animals was the _______________marella with jointed appendages.
The delicate looking arthropod marella are referred to as “lace ________.”
Along with marella and other arthropod trilobites have hard____________.
The Ordovician Ordovician period was characterized by diversification among the _____________.
During the Ordovician period certain green algae moved towards the ___________.
Bryozoans are a group of organisms sometimes known as “moss _______________.”
Brachiopod shells are among