WGU C190 INTRO TO BIOLOGY 2023 Test
Bank /+300 Questions Solved 100%Correct
Abiotic - ANSWER: Non-living, may be within or made by a living organism.
Biotic - ANSWER: Living. Matter is considered if it was ever alive at
some point in time
Atom - ANSWER: Smallest level. The basic unit of matter. Consists of adense
nucleus surrounded by electrons.
Molecule - ANSWER: Second level. A chemical structure consisting of atleast two
atoms held together by a chemical bond.
Macromolecule - ANSWER: Third level. Biologically important molecules thatare
technically polymers. Example: DNA.
Cell - ANSWER: Fourth level. The fundamental unit of life. Essentially a tiny droplet
of water and other molecules enclosed by a fluid "skin" or membrane. Thesmallest
and simplest entity that possesses all the characteristics of life.
Organelle - ANSWER: Fifth level. Compartments inside the cell that contain
specific groups of macromolecules and carry out specific cellular functions. One
of these organelles is the nucleus; it encloses the DNA within the cell.
Microorganism - ANSWER: Sixth level. Single-celled life form. Consists ofjust
one cell and include unicellular organisms such as bacteria and protists.
Tissue - ANSWER: Seventh level. Formed when similar cells work together tofulfill
the same detailed function.
,Organ - ANSWER: Eighth level. Collections of tissues that work together to carry
out a common general function. Present not only in higher level animals butalso in
plants.
Organ System - ANSWER: Ninth level. Consists of functionally relatedorgans.
Mammals have many.
Organism - ANSWER: Tenth Level. Individual living entities that survive and
reproduce as a unit. For example, each tree in a forest.
Population - ANSWER: Eleventh level. Consists of all the individuals of aspecies
living within a specific area.
Community - ANSWER: Twelfth level. Populations can interact with eachother in
positive and negative ways, and together they form this.
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'scrust;
water and ice; and the atmosphere to a great height.
Emergent Properties - ANSWER: Characteristics of a system that are notpresent in
any of its component parts.
Biology - ANSWER: The scientific study of life and is the branch of sciencethat
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 foritself.
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 nottake 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 asan
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 shareprofound
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 numberof
neutrons. The mass of an atom.
, Atomic Number - ANSWER: The number of protons in an atom, displayed foreach
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 bondbetween
atoms.
electron - ANSWER: Subatomic particle, located in shells on the outside ofthe
nucleus, has a negative charge and almost no mass.
electronegativity - ANSWER: A measure of the tendency of an atom to attracta
bonding pair of electrons. How strongly does an atoms attract bonding electrons
to itself?
element - ANSWER: Atoms with unique properties, designated by the atomic
number.
hydrogen bond - ANSWER: Weak chemical bond. Occurs between atoms in
different molecules or parts of molecules. Weak electrostatic attraction between
areas of molecules with opposite partial charges.
ion - ANSWER: Positively or negatively charged atom.
ionic bond - ANSWER: Moderately strong chemical bond. Occurs between
atoms in the same molecule. Electrons transfer from one atom to another.
isotope - ANSWER: Any or two or more forms of a chemical element, havingthe
same number of protons in the nucleus, or the same atomic number, but having
different numbers of neutrons in the nucleus, or different atomic weights.
Bank /+300 Questions Solved 100%Correct
Abiotic - ANSWER: Non-living, may be within or made by a living organism.
Biotic - ANSWER: Living. Matter is considered if it was ever alive at
some point in time
Atom - ANSWER: Smallest level. The basic unit of matter. Consists of adense
nucleus surrounded by electrons.
Molecule - ANSWER: Second level. A chemical structure consisting of atleast two
atoms held together by a chemical bond.
Macromolecule - ANSWER: Third level. Biologically important molecules thatare
technically polymers. Example: DNA.
Cell - ANSWER: Fourth level. The fundamental unit of life. Essentially a tiny droplet
of water and other molecules enclosed by a fluid "skin" or membrane. Thesmallest
and simplest entity that possesses all the characteristics of life.
Organelle - ANSWER: Fifth level. Compartments inside the cell that contain
specific groups of macromolecules and carry out specific cellular functions. One
of these organelles is the nucleus; it encloses the DNA within the cell.
Microorganism - ANSWER: Sixth level. Single-celled life form. Consists ofjust
one cell and include unicellular organisms such as bacteria and protists.
Tissue - ANSWER: Seventh level. Formed when similar cells work together tofulfill
the same detailed function.
,Organ - ANSWER: Eighth level. Collections of tissues that work together to carry
out a common general function. Present not only in higher level animals butalso in
plants.
Organ System - ANSWER: Ninth level. Consists of functionally relatedorgans.
Mammals have many.
Organism - ANSWER: Tenth Level. Individual living entities that survive and
reproduce as a unit. For example, each tree in a forest.
Population - ANSWER: Eleventh level. Consists of all the individuals of aspecies
living within a specific area.
Community - ANSWER: Twelfth level. Populations can interact with eachother in
positive and negative ways, and together they form this.
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'scrust;
water and ice; and the atmosphere to a great height.
Emergent Properties - ANSWER: Characteristics of a system that are notpresent in
any of its component parts.
Biology - ANSWER: The scientific study of life and is the branch of sciencethat
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 foritself.
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 nottake 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 asan
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 shareprofound
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 numberof
neutrons. The mass of an atom.
, Atomic Number - ANSWER: The number of protons in an atom, displayed foreach
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 bondbetween
atoms.
electron - ANSWER: Subatomic particle, located in shells on the outside ofthe
nucleus, has a negative charge and almost no mass.
electronegativity - ANSWER: A measure of the tendency of an atom to attracta
bonding pair of electrons. How strongly does an atoms attract bonding electrons
to itself?
element - ANSWER: Atoms with unique properties, designated by the atomic
number.
hydrogen bond - ANSWER: Weak chemical bond. Occurs between atoms in
different molecules or parts of molecules. Weak electrostatic attraction between
areas of molecules with opposite partial charges.
ion - ANSWER: Positively or negatively charged atom.
ionic bond - ANSWER: Moderately strong chemical bond. Occurs between
atoms in the same molecule. Electrons transfer from one atom to another.
isotope - ANSWER: Any or two or more forms of a chemical element, havingthe
same number of protons in the nucleus, or the same atomic number, but having
different numbers of neutrons in the nucleus, or different atomic weights.
