WGU C190 BIOLOGY EXAM HIGH-YIELD
ECOLOGY, MOLECULAR BIOLOGY, AND
BIOCHEMISTRY SUMMARY 2026
◉ Characteristics of Life.
Answer: 1. 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.
◉ The Cell.
Answer: the smallest unit that displays all characteristics of life
◉ Matter.
Answer: Any substance that has mass and takes up space. All matter
can be classified as biotic or abiotic.
◉ Biotic.
Answer: Living or having lived
,◉ Abiotic.
Answer: nonliving and never have been alive
◉ Atom.
Answer: Basic unit of matter
◉ Molecule.
Answer: a chemical structure consisting of at least two atoms held
together by a chemical bond
◉ Macromolecules.
Answer: Technically polymers, made by combining smaller units
called monomers. (Example -Deoxyrbonucleic Acid [DNA])
◉ Two main types of cells.
Answer: Prokaryotic and Eukaryotic
◉ Prokaryote.
Answer: Small and simple, do not have clearly defined
compartments inside of them
◉ Eukaryotes.
, Answer: organisms made up of one or more cells that have a nucleus
and membrane-bound organelles
◉ Organelles.
Answer: compartments inside of the cell that contain specific groups
of macromolecules and carry out specific cellular functions.
◉ microorganism.
Answer: single-celled life forms
◉ Tissues.
Answer: A group of similar cells that perform the same function.
◉ Organs.
Answer: A collection of tissues that work together to carry out a
common general function.
◉ organ system.
Answer: the higher level of organization that consists of functionally
related organs
◉ Organism.
Answer: individual living entity that survive and reproduce as a unit
ECOLOGY, MOLECULAR BIOLOGY, AND
BIOCHEMISTRY SUMMARY 2026
◉ Characteristics of Life.
Answer: 1. 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.
◉ The Cell.
Answer: the smallest unit that displays all characteristics of life
◉ Matter.
Answer: Any substance that has mass and takes up space. All matter
can be classified as biotic or abiotic.
◉ Biotic.
Answer: Living or having lived
,◉ Abiotic.
Answer: nonliving and never have been alive
◉ Atom.
Answer: Basic unit of matter
◉ Molecule.
Answer: a chemical structure consisting of at least two atoms held
together by a chemical bond
◉ Macromolecules.
Answer: Technically polymers, made by combining smaller units
called monomers. (Example -Deoxyrbonucleic Acid [DNA])
◉ Two main types of cells.
Answer: Prokaryotic and Eukaryotic
◉ Prokaryote.
Answer: Small and simple, do not have clearly defined
compartments inside of them
◉ Eukaryotes.
, Answer: organisms made up of one or more cells that have a nucleus
and membrane-bound organelles
◉ Organelles.
Answer: compartments inside of the cell that contain specific groups
of macromolecules and carry out specific cellular functions.
◉ microorganism.
Answer: single-celled life forms
◉ Tissues.
Answer: A group of similar cells that perform the same function.
◉ Organs.
Answer: A collection of tissues that work together to carry out a
common general function.
◉ organ system.
Answer: the higher level of organization that consists of functionally
related organs
◉ Organism.
Answer: individual living entity that survive and reproduce as a unit
