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WGU C190 Intro to Biology OA ACTUAL EXAM STUDY
GUIDE 2025/2026 COMPLETE QUESTIONS WITH
CORRECT DETAILED ANSWERS || 100%
GUARANTEED PASS <RECENT VERSION>
Abiotic .....Answer.....Non-living, may be within or made by a
living organism.
Macromolecule .....Answer.....Third level. Biologically important
molecules that are 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. The smallest and simplest entity
that possesses all the characteristics of life.
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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 of just one cell and include unicellular organisms such as
bacteria and protists.
Tissue .....Answer.....Seventh level. Formed when similar cells work
together to fulfill 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 but also in plants.
Organ System .....Answer.....Ninth level. Consists of functionally
related organs. Mammals have many.
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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 a species living within a specific area.
Community .....Answer.....Twelfth level. Populations can interact
with each other 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,
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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
WGU C190 Intro to Biology OA ACTUAL EXAM STUDY
GUIDE 2025/2026 COMPLETE QUESTIONS WITH
CORRECT DETAILED ANSWERS || 100%
GUARANTEED PASS <RECENT VERSION>
Abiotic .....Answer.....Non-living, may be within or made by a
living organism.
Macromolecule .....Answer.....Third level. Biologically important
molecules that are 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. The smallest and simplest entity
that possesses all the characteristics of life.
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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 of just one cell and include unicellular organisms such as
bacteria and protists.
Tissue .....Answer.....Seventh level. Formed when similar cells work
together to fulfill 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 but also in plants.
Organ System .....Answer.....Ninth level. Consists of functionally
related organs. Mammals have many.
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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 a species living within a specific area.
Community .....Answer.....Twelfth level. Populations can interact
with each other 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,
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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
