1
soil removal by water, wind, ice, or
gravity
erosion
an organic compound that contains only
hydrogen and carbon
hydrocarbon
an underground water reservoir
aquifer
Predator prey relationships are an example of a ___.
negative feedback loop
Matter that organisms require for their life processes are called ___.
nutrients
an organism that must eat other
organisms to obtain nutrients
consumer
a large section of lithosphere that moves
across Earth’s surface
tectonic plate
matter needed by an organism to live
nutrient
Which sphere of Earth is made of all the rock above and below Earth's surface?
geosphere
A change in state in which water returns to Earth's surface and changes from a vapor to a liquid is called __.
condensation
a protein, nucleic acid, carbohydrate, or
lipid
macromolecule
the basic unit of matter
atom
that matter can be transformed but
not created or destroyed
law of conservation of matter
The basic units of matter, the smallest units that maintain the chemical properties of an element, are called ___.
atoms
a large section of lithosphere that moves
across Earth’s surface
tectonic plate
an overgrowth of producers often caused
by the release of phosphorus
eutrophication
a mountain, island, or continent that
forms above and below an ocean’s surface
landform
Because of their large size, proteins, nucleic acids, carbohydrates, and lipids are together called _____.
macromolecules.
The lithosphere is carried on a softer, but still firm, layer of rock called the __.
asthenosphere
that matter can be transformed but
not created or destroyed
law of conservation of matter
an organism that can produce its own
food
primary producer
a cyclical process that can be either
positive or negative
feedback loop
Why is water often called “the universal solvent”?
It can dissolve many other molecules.
Which sphere are humans a part of?
hydrosphere
an organic compound that contains only
hydrogen and carbon
hydrocarbon