WGU C190 INTRO TO BIOLOGY EXAM
Questions and Answers
1.Non-living, may be within or made by a living organism.
Answer Abiotic
2.Living. Matter is considered if it was ever alive at some point in
time
Answer Biotic
3.Smallest level. The basic unit of matter. Consists of a dense nucleus
sur- rounded by electrons.
Answer Atom
4.Second level. A chemical structure consisting of at least two atoms
held together by a chemical bond.
Answer Molecule
5.Third level. Biologically important molecules that are technically
polymers. Example; DNA.
Answer Macromolecule
6.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.
Answer Cell
7.Fifth level. Compartments inside the cell that contain specific groups of
macromolecules and carry out specific cellular functions. One of these
or- ganelles is the nucleus; it encloses the DNA within the cell.
Answer Organelle
8.Sixth level. Single-celled life form. Consists of just one cell and
include unicellular organisms such as bacteria and protists.
Answer Microorganism
9.Seventh level. Formed when similar cells work together to fulfill the
same detailed function.
Answer Tissue
10.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.
Answer Organ
11.Ninth level. Consists of functionally related organs. Mammals have many
Answer Organ System
,12.Tenth Level. Individual living entities that survive and reproduce as a
unit. For example, each tree in a forest.
Answer Organism
13.Eleventh level. Consists of all the individuals of a species living within
a specific area.
Answer Population
14.Twelfth level. Populations can interact with each other in positive
and negative ways, and together they form this.
Answer Community
15.Thirteenth level. Consists of all the living things in a particular area
togeth- er with the abiotic, or nonliving, parts of that environment.
Answer Ecosystem
16.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.
Answer Biosphere
17.Characteristics of a system that are not present in any of its
component parts.
Answer Emergent Properties
, 18.The scientific study of life and is the branch of science that studies
living organisms and the way organisms interact with their environments.
Answer Biology
19.The ability or tendency of organisms and cells to maintain stable
internal conditions.
Answer Homeostasis
20.Any matter an organism needs but cannot make for itself.
Answer Nutrient
21.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.
Answer Energy
22.An increase in size.
Answer Growth
23.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.
Answer Development
Questions and Answers
1.Non-living, may be within or made by a living organism.
Answer Abiotic
2.Living. Matter is considered if it was ever alive at some point in
time
Answer Biotic
3.Smallest level. The basic unit of matter. Consists of a dense nucleus
sur- rounded by electrons.
Answer Atom
4.Second level. A chemical structure consisting of at least two atoms
held together by a chemical bond.
Answer Molecule
5.Third level. Biologically important molecules that are technically
polymers. Example; DNA.
Answer Macromolecule
6.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.
Answer Cell
7.Fifth level. Compartments inside the cell that contain specific groups of
macromolecules and carry out specific cellular functions. One of these
or- ganelles is the nucleus; it encloses the DNA within the cell.
Answer Organelle
8.Sixth level. Single-celled life form. Consists of just one cell and
include unicellular organisms such as bacteria and protists.
Answer Microorganism
9.Seventh level. Formed when similar cells work together to fulfill the
same detailed function.
Answer Tissue
10.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.
Answer Organ
11.Ninth level. Consists of functionally related organs. Mammals have many
Answer Organ System
,12.Tenth Level. Individual living entities that survive and reproduce as a
unit. For example, each tree in a forest.
Answer Organism
13.Eleventh level. Consists of all the individuals of a species living within
a specific area.
Answer Population
14.Twelfth level. Populations can interact with each other in positive
and negative ways, and together they form this.
Answer Community
15.Thirteenth level. Consists of all the living things in a particular area
togeth- er with the abiotic, or nonliving, parts of that environment.
Answer Ecosystem
16.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.
Answer Biosphere
17.Characteristics of a system that are not present in any of its
component parts.
Answer Emergent Properties
, 18.The scientific study of life and is the branch of science that studies
living organisms and the way organisms interact with their environments.
Answer Biology
19.The ability or tendency of organisms and cells to maintain stable
internal conditions.
Answer Homeostasis
20.Any matter an organism needs but cannot make for itself.
Answer Nutrient
21.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.
Answer Energy
22.An increase in size.
Answer Growth
23.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.
Answer Development
