Geo 112 (Study 4)

Weathering and production of CaCO₃ tie-up CO₂.

Laurentia consisted of ______.

The Early Permian carnivore Dimetrodon was a

Our planet's early water ocean was formed by _______.

The 1.2 to 1.0 Ga Grenville Orogeny produced growth on _____.

In Neoproterozoic rocks about 570 million years old, evidence of multicellular animal life Ediacara fauna consists of

Based on Devonian fossils, amphibians evolved from ray-finned fishes.

The oldest known crustal materials, which are fragments from crustal rocks about 4.4 billion years old, are _______.

During its formation, the first surface of Earth was likely a __________.

___ is likely to have been present in the earliest life forms; the genetic basis for an early global ecosystem on Earth.

How do eukaryotic cells differ from prokaryote cells?

The oldest organic reefs with skeletal structures formed during __________ and were composed of __________.

During  the Cambrian Period most of Earth's landmasses were located in the far southern region of the planet.

Metamorphism and melting do not release CO₂.

The origin of Earth's early atmosphere was because of _____.

Archean greenstone belts sit among masses of ________.

The Proterozoic Keweenawan basalts erupted in a great, elongate rift that could have pulled North America apart.

The great Proterozoic supercontinent, which was split apart by about 630 million years ago, is called ______.

Age dating studies on the mineral zircon indicate that the first continental crust began to form by about

Insects with wings were present by ____.

The Paleoproterozoic shift at about 1.85 billion years ago from banded-iron formations to red beds signals the ________.

The Burgess Shale fossil assemblage made geologists aware of ______.

Meteorites made of iron with rock-like Earth's upper mantle are called ______.

It is likely that the intracellular body within single-celled eukaryotes, which is called a chloroplast, was originally

In Ordovician time abundant carbonate deposits were in Lurentia. What type climate is indicated by these deposits?

One hypothesis for the origin of Earth's early felsic crust is ______.

The earliest multicellular, upright land plants were Silurian semiaquatic, marsh-dwelling stemmed plants.

The collision of the Eastern Klamath Arc with the western Laurentian continental margin resulted in the _______ orogeny.

Greenstone belts were formerly _______.

The key feature in the origin of reptiles was the ______.

Gowganda mudstones in Canada show evidence of glacial melting at sea or in a large lake in the form of ______.

Based on the fossil record, the plant adaptation resulting in the seed occurred during ______.

Microcontinents were made from ______.

The new reproductive strategy of reptiles allowed them to __________ for the first time.

From rocks formed at the time of the Archean-Proterozoic transition (2.5 billion years ago), there is evidence _____.

The Proterozoic orogeny that built mountains along the east coast of North America is called _______.

Gymnosperm means “naked seed plants.”

Select the incorrect reason that Archean rocks are rare on the Earth's surface.

The second phase of the great Ordovician mass extinction is associated with the disappearance of many fossil groups ____

Regional metamorphism affected Proterozoic cratons in a process called ________.

Animals probably originated during Neoproterozoic.

The Wopmay orogeny, involving the Slave craton and an island arc, tells us that _______.

The trilobites first appear during

The key evolutionary step that allowed one cell to engulf another was the _____.

The fish group that went on to become the ancestor of all terrestrial vertebrates was the ____.

If the rate of brail dramatically increases _______

The photosynthetic organisms in Archean stromatolites were _______.

The Middle Carboniferous orogeny in North America is known as Alleghenian.

During Ordovician, the decline of stromatolites was due to

The origin of Earth's Moon was ________.

The development of a Late Ordovician ice sheet on Gondwanaland resulted in

During Silurian (between the Taconic and Acadian orogenies), a(n) ____ developed in the Appalachian region of Laurentia.