WGU C190 INTRO TO BIOLOGY EXAM
COMPREHENSIVE TEST PAPER QUESTIONS
AND SOLUTIONS
◉ Ecosystem.
Answer: Thirteenth level. Consists of all the living things in a
particular area together with the abiotic, or nonliving, parts of that
environment.
◉ Biosphere.
Answer: Fourteenth level. The highest level of organization in living
systems. The collection of all ecosystems on Earth. Includes all
habitable zones on the planet, including land, soil, and rocks to a
great depth in the Earth's crust; water and ice; and the atmosphere
to a great height.
◉ Emergent Properties.
Answer: Characteristics of a system that are not present in any of its
component parts.
◉ Biology.
,Answer: The scientific study of life and is the branch of science that
studies living organisms and the way organisms interact with their
environments.
◉ Homeostasis.
Answer: The ability or tendency of organisms and cells to maintain
stable internal conditions.
◉ Nutrient.
Answer: Any matter an organism needs but cannot make for itself.
◉ Energy.
Answer: The capacity to do work or to make a change in the location,
temperature, or structure of matter. Does not have mass and it does
not take up space, but it can be measured in terms of what it does.
◉ Growth.
Answer: An increase in size.
◉ Development.
Answer: Structure and function change in an orderly way as an
organism passes through its life cycle. An individual's pattern of
_______ is partly determined by genetic instructions.
,◉ Reproduction.
Answer: Occurs when an individual organism passes on its genetic
information to a newly independent organism, or offspring.
◉ Evolution.
Answer: A scientific theory that explains how and why life changes
over time. Provides the explanation for why all living organisms
share profound similarities, and yet, the life forms on our planet are
so incredibly diverse.
◉ Natural Selection.
Answer: Individuals are always a bit different from their parents and
from each other, partly because of changes to their genes. These
differences may be helpful or harmful to the individuals that inherit
them. In nature, individuals often have very low odds of surviving to
reproduce. Individuals with slightly harmful or even average
characteristics might be less likely to make it, and those with traits
that fit in very well with the local habitat will have the greatest
chance to survive and reproduce. This sorting process goes on
generation after generation.
◉ Atomic Mass.
Answer: The sum of the number of protons and the number of
neutrons. The mass of an atom.
, ◉ Atomic Number.
Answer: The number of protons in an atom, displayed for each atom
in the periodic table.
◉ Chemical Bonds.
Answer: Attractions between atoms that hold atoms and molecules
together.
◉ Covalent Bonds.
Answer: Strongest chemical bond. Occurs between atoms of in the
same molecule. Electron pairs are shared, creating a strong bond
between atoms.
◉ electron.
Answer: Subatomic particle, located in shells on the outside of the
nucleus, has a negative charge and almost no mass.
◉ electronegativity.
Answer: A measure of the tendency of an atom to attract a bonding
pair of electrons. How strongly does an atoms attract bonding
electrons to itself?
◉ element.
COMPREHENSIVE TEST PAPER QUESTIONS
AND SOLUTIONS
◉ Ecosystem.
Answer: Thirteenth level. Consists of all the living things in a
particular area together with the abiotic, or nonliving, parts of that
environment.
◉ Biosphere.
Answer: Fourteenth level. The highest level of organization in living
systems. The collection of all ecosystems on Earth. Includes all
habitable zones on the planet, including land, soil, and rocks to a
great depth in the Earth's crust; water and ice; and the atmosphere
to a great height.
◉ Emergent Properties.
Answer: Characteristics of a system that are not present in any of its
component parts.
◉ Biology.
,Answer: The scientific study of life and is the branch of science that
studies living organisms and the way organisms interact with their
environments.
◉ Homeostasis.
Answer: The ability or tendency of organisms and cells to maintain
stable internal conditions.
◉ Nutrient.
Answer: Any matter an organism needs but cannot make for itself.
◉ Energy.
Answer: The capacity to do work or to make a change in the location,
temperature, or structure of matter. Does not have mass and it does
not take up space, but it can be measured in terms of what it does.
◉ Growth.
Answer: An increase in size.
◉ Development.
Answer: Structure and function change in an orderly way as an
organism passes through its life cycle. An individual's pattern of
_______ is partly determined by genetic instructions.
,◉ Reproduction.
Answer: Occurs when an individual organism passes on its genetic
information to a newly independent organism, or offspring.
◉ Evolution.
Answer: A scientific theory that explains how and why life changes
over time. Provides the explanation for why all living organisms
share profound similarities, and yet, the life forms on our planet are
so incredibly diverse.
◉ Natural Selection.
Answer: Individuals are always a bit different from their parents and
from each other, partly because of changes to their genes. These
differences may be helpful or harmful to the individuals that inherit
them. In nature, individuals often have very low odds of surviving to
reproduce. Individuals with slightly harmful or even average
characteristics might be less likely to make it, and those with traits
that fit in very well with the local habitat will have the greatest
chance to survive and reproduce. This sorting process goes on
generation after generation.
◉ Atomic Mass.
Answer: The sum of the number of protons and the number of
neutrons. The mass of an atom.
, ◉ Atomic Number.
Answer: The number of protons in an atom, displayed for each atom
in the periodic table.
◉ Chemical Bonds.
Answer: Attractions between atoms that hold atoms and molecules
together.
◉ Covalent Bonds.
Answer: Strongest chemical bond. Occurs between atoms of in the
same molecule. Electron pairs are shared, creating a strong bond
between atoms.
◉ electron.
Answer: Subatomic particle, located in shells on the outside of the
nucleus, has a negative charge and almost no mass.
◉ electronegativity.
Answer: A measure of the tendency of an atom to attract a bonding
pair of electrons. How strongly does an atoms attract bonding
electrons to itself?
◉ element.
