WGU C190 – Introduction to Biology 2025-2026 100% A+ Success
Guaranteed Complete Study Guide & Objective Assessment Q&A
Biology the scientific study of life CORRECT ANSWER Characteristics of Life1. Be
made of materials organized in a hierarchical pattern.
2. Use energy and raw materials to survive
3. Sense and respond to changing environments and maintain internal stability, or homeostasis.
4. Grow, develop, and reproduce.
5. Be part of a population that evolves. CORRECT ANSWER The Cell the smallest unit that
displays all characteristics of life CORRECT ANSWER Matter Any substance that has mass
and takes up space. All matter can be classified as biotic or abiotic. CORRECT ANSWER
Biotic Living or having lived CORRECT ANSWER Abiotic nonliving and never have
been alive CORRECT ANSWER Atom Basic unit of matter CORRECT ANSWER
Molecule a chemical structure consisting of at least two atoms held together by a chemical
bond CORRECT ANSWER Macromolecules Technically polymers, made by combining
smaller units called monomers. (Example -Deoxyrbonucleic Acid [DNA]) CORRECT
ANSWER Two main types of cells Prokaryotic and Eukaryotic CORRECT ANSWER
Prokaryote Small and simple, do not have clearly defined compartments inside of them
CORRECT ANSWER Eukaryotes organisms made up of one or more cells that have a
nucleus and membrane-bound organelles CORRECT ANSWER Organelles compartments
inside of the cell that contain specific groups of macromolecules and carry out specific cellular
functions. CORRECT ANSWER microorganism single-celled life forms CORRECT
ANSWER Tissues A group of similar cells that perform the same function. CORRECT
ANSWER Organs A collection of tissues that work together to carry out a common general
function. CORRECT ANSWER organ system the higher level of organization that consists
of functionally related organs CORRECT ANSWER Organism individual living entity that
survive and reproduce as a unit CORRECT ANSWER Population all the individuals of a
, species living in a specific area CORRECT ANSWER Community All the different
populations that live together in an area CORRECT ANSWER Ecosystem Consists of all
the living things in a particular area together with the abiotic parts of that environment.
CORRECT ANSWER Biosphere the of all ecosystems on Earth. Includes all habitable zones
on the planet, including land, soil, rocks the Earth's crust, water and ice, and the atmosphere.
CORRECT ANSWER Organization of Biosphere Molecule, Cell, Organism,
Population, Community, Ecosystem CORRECT ANSWER Homeostasis the ability to
maintain a stable internal environment CORRECT ANSWER Nutrient Any matter an
organism needs but cannot make for itself CORRECT ANSWER Waste Matter that is
not used by an organism tat is excreted CORRECT ANSWER Energy the capacity to do
work or to make a change in the location, temperature, or structure of matter. CORRECT
ANSWER Evolution Scientific theory that explains how and why life changes over time.
CORRECT ANSWER natural selection A process in which individuals that have certain
inherited traits tend to survive and reproduce at higher rates than other individuals because of
those traits. CORRECT ANSWER sceintific inquiry an approach to asking and answering
questions CORRECT ANSWER Protons Positively charged particles CORRECT ANSWER
Neutrons the particles of the nucleus that have a neutral charge CORRECT ANSWER
electron A subatomic particle that has a negative charge CORRECT ANSWER
covalent bond A chemical bond that involves sharing a pair of electrons between atoms in a
molecule CORRECT ANSWER ionic bond A chemical bond resulting from the
attraction between oppositely charged ions. CORRECT ANSWER hydrogen bond weak
attraction between a hydrogen atom and another atom CORRECT ANSWER organic
molecules contain skeleton structures of carbon with hydrogen and oxygen CORRECT
ANSWER inorganic molecules non-carbon based molecules CORRECT ANSWER
monomers A chemical subunit that serves as a building block of a polymer. CORRECT
ANSWER polymer A long molecule consisting of many similar or identical monomers
linked together. CORRECT ANSWER Carbohydrates (sugars)store energy; provide
structural support; facilitate communication CORRECT ANSWER lipids (fatty acids)
provide energy (long term); serve as structural components of membranes CORRECT ANSWER
nucleic acids (nucleotides) store genetic information, used in protein synthesis CORRECT
ANSWER proteins (amino acids) serve as structural components of tissues; facilitate and
Guaranteed Complete Study Guide & Objective Assessment Q&A
Biology the scientific study of life CORRECT ANSWER Characteristics of Life1. Be
made of materials organized in a hierarchical pattern.
2. Use energy and raw materials to survive
3. Sense and respond to changing environments and maintain internal stability, or homeostasis.
4. Grow, develop, and reproduce.
5. Be part of a population that evolves. CORRECT ANSWER The Cell the smallest unit that
displays all characteristics of life CORRECT ANSWER Matter Any substance that has mass
and takes up space. All matter can be classified as biotic or abiotic. CORRECT ANSWER
Biotic Living or having lived CORRECT ANSWER Abiotic nonliving and never have
been alive CORRECT ANSWER Atom Basic unit of matter CORRECT ANSWER
Molecule a chemical structure consisting of at least two atoms held together by a chemical
bond CORRECT ANSWER Macromolecules Technically polymers, made by combining
smaller units called monomers. (Example -Deoxyrbonucleic Acid [DNA]) CORRECT
ANSWER Two main types of cells Prokaryotic and Eukaryotic CORRECT ANSWER
Prokaryote Small and simple, do not have clearly defined compartments inside of them
CORRECT ANSWER Eukaryotes organisms made up of one or more cells that have a
nucleus and membrane-bound organelles CORRECT ANSWER Organelles compartments
inside of the cell that contain specific groups of macromolecules and carry out specific cellular
functions. CORRECT ANSWER microorganism single-celled life forms CORRECT
ANSWER Tissues A group of similar cells that perform the same function. CORRECT
ANSWER Organs A collection of tissues that work together to carry out a common general
function. CORRECT ANSWER organ system the higher level of organization that consists
of functionally related organs CORRECT ANSWER Organism individual living entity that
survive and reproduce as a unit CORRECT ANSWER Population all the individuals of a
, species living in a specific area CORRECT ANSWER Community All the different
populations that live together in an area CORRECT ANSWER Ecosystem Consists of all
the living things in a particular area together with the abiotic parts of that environment.
CORRECT ANSWER Biosphere the of all ecosystems on Earth. Includes all habitable zones
on the planet, including land, soil, rocks the Earth's crust, water and ice, and the atmosphere.
CORRECT ANSWER Organization of Biosphere Molecule, Cell, Organism,
Population, Community, Ecosystem CORRECT ANSWER Homeostasis the ability to
maintain a stable internal environment CORRECT ANSWER Nutrient Any matter an
organism needs but cannot make for itself CORRECT ANSWER Waste Matter that is
not used by an organism tat is excreted CORRECT ANSWER Energy the capacity to do
work or to make a change in the location, temperature, or structure of matter. CORRECT
ANSWER Evolution Scientific theory that explains how and why life changes over time.
CORRECT ANSWER natural selection A process in which individuals that have certain
inherited traits tend to survive and reproduce at higher rates than other individuals because of
those traits. CORRECT ANSWER sceintific inquiry an approach to asking and answering
questions CORRECT ANSWER Protons Positively charged particles CORRECT ANSWER
Neutrons the particles of the nucleus that have a neutral charge CORRECT ANSWER
electron A subatomic particle that has a negative charge CORRECT ANSWER
covalent bond A chemical bond that involves sharing a pair of electrons between atoms in a
molecule CORRECT ANSWER ionic bond A chemical bond resulting from the
attraction between oppositely charged ions. CORRECT ANSWER hydrogen bond weak
attraction between a hydrogen atom and another atom CORRECT ANSWER organic
molecules contain skeleton structures of carbon with hydrogen and oxygen CORRECT
ANSWER inorganic molecules non-carbon based molecules CORRECT ANSWER
monomers A chemical subunit that serves as a building block of a polymer. CORRECT
ANSWER polymer A long molecule consisting of many similar or identical monomers
linked together. CORRECT ANSWER Carbohydrates (sugars)store energy; provide
structural support; facilitate communication CORRECT ANSWER lipids (fatty acids)
provide energy (long term); serve as structural components of membranes CORRECT ANSWER
nucleic acids (nucleotides) store genetic information, used in protein synthesis CORRECT
ANSWER proteins (amino acids) serve as structural components of tissues; facilitate and
