C190 BIOLOGY WGU EXAM QUESTIONS AND
ANSWERS
5 Qualities of Living Organisms - ✔✔ - -Made of materials organized in hierarchical
patterns.
-Use energy and raw materials to survive.
-Sense and respond to changing environments (maintain homeostasis.)
-Grow, develop, and reproduce.
-Part of a population that evolves.
Cell - ✔✔ - smallest unit of life
Matter - ✔✔ - Any substance that occupies space and has mass
Biotic - ✔✔ - Living or have lived
Abiotic - ✔✔ - Non-living or never having lived
Atom - ✔✔ - Basic unit of matter
Molecule - ✔✔ - consists of two or more atoms held together by covalent bonds
Macromolecules - ✔✔ - biological molecules (lipids, proteins, dna, carbs)
Prokaryote - ✔✔ - have no nucleus
Eukaryote - ✔✔ - A cell that contains a nucleus and membrane-bound organelles
Organelle - ✔✔ - A tiny cell structure that carries out a specific function within the cell
microorganism - ✔✔ - single-celled life forms
, Organs - ✔✔ - Groups of tissues that work together to perform a specific function or
related functions
Ecosystem - ✔✔ - Consists of all the organisms living in a community as well as all the
abiotic factors with which they interact.
Biome - ✔✔ - A group of ecosystems that share similar climates and typical organisms.
(Rainforest, Tundra, Desert)
Biosphere - ✔✔ - a collection of all ecosystems on Earth. All areas on, within, and
around the earth that can support life. (land, soil, crust, atmosphere.)
Scientific Method - ✔✔ - A series of steps followed to solve problems including: 1.
Formulating a hypothesis. 2. Testing the hypothesis(experiment) 3. Gathering data. 4.
Interpreting results/Stating conclusions.
Pseudoscience - ✔✔ - A fake or false science that makes claims based on little or no
scientific evidence.
Atoms are made up of? - ✔✔ - protons +, neutrons, electrons -
Protons and Neutrons have an AMU of ____ - ✔✔ - 1 AMU
1st shell can hold - ✔✔ - up to 2 electrons
2nd and 3rd shell can hold - ✔✔ - up to 8 electrons each
An atom with a charge, (positive or negative) is an ___ - ✔✔ - ION
atomic number - ✔✔ - the number of protons in the nucleus of an atom
Type of chemical bonds - ✔✔ - ionic, covalent, hydrogen
covalent bond - ✔✔ - A chemical bond formed when two atoms share electrons
ionic bond - ✔✔ - Formed when one or more electrons (opposite charge) are transferred
from one atom to another
ANSWERS
5 Qualities of Living Organisms - ✔✔ - -Made of materials organized in hierarchical
patterns.
-Use energy and raw materials to survive.
-Sense and respond to changing environments (maintain homeostasis.)
-Grow, develop, and reproduce.
-Part of a population that evolves.
Cell - ✔✔ - smallest unit of life
Matter - ✔✔ - Any substance that occupies space and has mass
Biotic - ✔✔ - Living or have lived
Abiotic - ✔✔ - Non-living or never having lived
Atom - ✔✔ - Basic unit of matter
Molecule - ✔✔ - consists of two or more atoms held together by covalent bonds
Macromolecules - ✔✔ - biological molecules (lipids, proteins, dna, carbs)
Prokaryote - ✔✔ - have no nucleus
Eukaryote - ✔✔ - A cell that contains a nucleus and membrane-bound organelles
Organelle - ✔✔ - A tiny cell structure that carries out a specific function within the cell
microorganism - ✔✔ - single-celled life forms
, Organs - ✔✔ - Groups of tissues that work together to perform a specific function or
related functions
Ecosystem - ✔✔ - Consists of all the organisms living in a community as well as all the
abiotic factors with which they interact.
Biome - ✔✔ - A group of ecosystems that share similar climates and typical organisms.
(Rainforest, Tundra, Desert)
Biosphere - ✔✔ - a collection of all ecosystems on Earth. All areas on, within, and
around the earth that can support life. (land, soil, crust, atmosphere.)
Scientific Method - ✔✔ - A series of steps followed to solve problems including: 1.
Formulating a hypothesis. 2. Testing the hypothesis(experiment) 3. Gathering data. 4.
Interpreting results/Stating conclusions.
Pseudoscience - ✔✔ - A fake or false science that makes claims based on little or no
scientific evidence.
Atoms are made up of? - ✔✔ - protons +, neutrons, electrons -
Protons and Neutrons have an AMU of ____ - ✔✔ - 1 AMU
1st shell can hold - ✔✔ - up to 2 electrons
2nd and 3rd shell can hold - ✔✔ - up to 8 electrons each
An atom with a charge, (positive or negative) is an ___ - ✔✔ - ION
atomic number - ✔✔ - the number of protons in the nucleus of an atom
Type of chemical bonds - ✔✔ - ionic, covalent, hydrogen
covalent bond - ✔✔ - A chemical bond formed when two atoms share electrons
ionic bond - ✔✔ - Formed when one or more electrons (opposite charge) are transferred
from one atom to another
