Card Set Information
The way that a species relates to its environment defmes its
Consumers that feed on producers are called
herbivores and carnevores
A by-product of photosynthesis that is a major constituent in Earth's atmosphere is
Terrestrial climates on land near the equator tend to be
Near the base of the ___, continental crust gives way to oceanic crust.
Marshes occur in (on) the
The upper layer of the ocean, where enough light penetrates the water to permit plants to conduct photosynthsis, is called the and occurs at depths of ____meters in most instances.
photic zone 100-200 meters
Select the most important nektonic organism listed below
____ consume sediment and digest organic matter which is mixed with the mineral grains.
Water of brackish salinity is common in this environment.
bays and lagoons
Ocean life that exists above the sea floor is termed ____
The intertidal zone is most closely associated with the
The lithified, unsorted, heterogeneous material deposited by ancient glaciers is called
Among coarse grained deposits of ancient deserts and arid-basins,the sedimentary structure____is characteristic of sand dunes.
Meandering river sediments that accumulate inside of a river bend are said to form a
As a delta pro grades, deposits of the will lie directly on top of deposits of the prodelta
The pile of reef debris that has fallen from the steep, wave-swept reef front is called
Knobby, intertidal structures formed by cyanobacteria are called
A graded bed formed by the flow of dense sediment-charged water moving down a slope into deeper water is known as a
Below depths of 4009111, the dominant sediment on the sea floor is
pelagic sediment or calcareous ooze
_____ occur in lagoons behind elongate reefs.
A time-stratigraphic unit is the same thing as a
____includes all strata in the world that were deposited during a particular interval of time called an Era.
time rock unit
A ____is a polarity time-rock unit.
Among those listed below, is the smallest lithostratigraphic unit
A regression might result in a sandy beach deposit (or facies) being deposited over a ___ _
deposit (or facies).
If a mineral crystal originally contained 80 atoms of a common, radioactive isotope of uranium after 3 half-lives, how many atoms of the original isotope would remain in the crystal?
Global changes of sea level are termed
Castile Evaporites (CaS04) have thin, alternating light and dark sediment layers which are probably seasonal and are therefore equivalent in appearance to