WGU C190 INTRO TO BIOLOGY FINAL
EXAM AND PRE ASSESSMENT EXAM
2024 ACTUAL EXAM COMPLETE 500
QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT ANSWERS)
/ALREADY GRADED A+
Abiotic - ✔✔Non-living, may be within or made by a living organism.
Biotic - ✔✔Living. Matter is considered ______ if it was ever alive at some point
in time
Atom - ✔✔Smallest level. The basic unit of matter. Consists of a dense nucleus
surrounded by electrons.
Molecule - ✔✔Second level. A chemical structure consisting of at least two
atoms held together by a chemical bond.
Macromolecule - ✔✔Third level. Biologically important molecules that are
technically polymers. Example: DNA.
Cell - ✔✔Fourth level. The fundamental unit of life. Essentially a tiny droplet of
water and other molecules enclosed by a fluid "skin" or membrane. The
smallest and simplest entity that possesses all the characteristics of life.
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,Organelle - ✔✔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 - ✔✔Sixth level. Single-celled life form. Consists of just one cell
and include unicellular organisms such as bacteria and protists.
Tissue - ✔✔Seventh level. Formed when similar cells work together to fulfill the
same detailed function.
Organ - ✔✔Eighth level. Collections of tissues that work together to carry out a
common general function. Present not only in higher level animals but also in
plants.
Organ System - ✔✔Ninth level. Consists of functionally related organs.
Mammals have many.
Organism - ✔✔Tenth Level. Individual living entities that survive and reproduce
as a unit. For example, each tree in a forest.
Population - ✔✔Eleventh level. Consists of all the individuals of a species living
within a specific area.
Community - ✔✔Twelfth level. Populations can interact with each other in
positive and negative ways, and together they form this.
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,Ecosystem - ✔✔Thirteenth level. Consists of all the living things in a particular
area together with the abiotic, or nonliving, parts of that environment.
Biosphere - ✔✔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 - ✔✔Characteristics of a system that are not present in any
of its component parts.
Biology - ✔✔The scientific study of life and is the branch of science that studies
living organisms and the way organisms interact with their environments.
Homeostasis - ✔✔The ability or tendency of organisms and cells to maintain
stable internal conditions.
Nutrient - ✔✔Any matter an organism needs but cannot make for itself.
Energy - ✔✔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 - ✔✔An increase in size.
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, Development - ✔✔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 - ✔✔Occurs when an individual organism passes on its genetic
information to a newly independent organism, or offspring.
Evolution - ✔✔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 - ✔✔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 - ✔✔The sum of the number of protons and the number of
neutrons. The mass of an atom.
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©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
EXAM AND PRE ASSESSMENT EXAM
2024 ACTUAL EXAM COMPLETE 500
QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT ANSWERS)
/ALREADY GRADED A+
Abiotic - ✔✔Non-living, may be within or made by a living organism.
Biotic - ✔✔Living. Matter is considered ______ if it was ever alive at some point
in time
Atom - ✔✔Smallest level. The basic unit of matter. Consists of a dense nucleus
surrounded by electrons.
Molecule - ✔✔Second level. A chemical structure consisting of at least two
atoms held together by a chemical bond.
Macromolecule - ✔✔Third level. Biologically important molecules that are
technically polymers. Example: DNA.
Cell - ✔✔Fourth level. The fundamental unit of life. Essentially a tiny droplet of
water and other molecules enclosed by a fluid "skin" or membrane. The
smallest and simplest entity that possesses all the characteristics of life.
1|Page
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
,Organelle - ✔✔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 - ✔✔Sixth level. Single-celled life form. Consists of just one cell
and include unicellular organisms such as bacteria and protists.
Tissue - ✔✔Seventh level. Formed when similar cells work together to fulfill the
same detailed function.
Organ - ✔✔Eighth level. Collections of tissues that work together to carry out a
common general function. Present not only in higher level animals but also in
plants.
Organ System - ✔✔Ninth level. Consists of functionally related organs.
Mammals have many.
Organism - ✔✔Tenth Level. Individual living entities that survive and reproduce
as a unit. For example, each tree in a forest.
Population - ✔✔Eleventh level. Consists of all the individuals of a species living
within a specific area.
Community - ✔✔Twelfth level. Populations can interact with each other in
positive and negative ways, and together they form this.
2|Page
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
,Ecosystem - ✔✔Thirteenth level. Consists of all the living things in a particular
area together with the abiotic, or nonliving, parts of that environment.
Biosphere - ✔✔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 - ✔✔Characteristics of a system that are not present in any
of its component parts.
Biology - ✔✔The scientific study of life and is the branch of science that studies
living organisms and the way organisms interact with their environments.
Homeostasis - ✔✔The ability or tendency of organisms and cells to maintain
stable internal conditions.
Nutrient - ✔✔Any matter an organism needs but cannot make for itself.
Energy - ✔✔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 - ✔✔An increase in size.
3|Page
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
, Development - ✔✔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 - ✔✔Occurs when an individual organism passes on its genetic
information to a newly independent organism, or offspring.
Evolution - ✔✔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 - ✔✔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 - ✔✔The sum of the number of protons and the number of
neutrons. The mass of an atom.
4|Page
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
