Name:__________________________________________ Biology Period___________ Date______________
Chapter 14 Key Vocabulary Review
MATCHING
Place the word and letter in the blank next to the correct definition.
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
m.
Habitat
Ecological niche
Competitive exclusion
Ecological equivalents
Competition
Predation
Symbiosis
Mutualism
Commensalism
Parasitism
Population density
Population dispersion
Survivorship curve
Letter
Word
n.
o.
p.
q.
r.
s.
t.
u.
v.
w.
x.
y.
z.
Immigration
Emigration
Exponential growth
Logistic growth
Carrying capacity
Population crash
Limiting factor
Density-dependent limiting factor
Density-independent limiting factor
Succession
Primary succession
Pioneer species
Secondary succession
Definition
Way in which individuals of a population are spread out over an
area or volume.
Establishment and development of an ecosystem in an area that
was previously uninhabited.
Movement of individuals into a population.
Environmental factor that limits the growth and size of a
population.
Process by which one organism hunts and kills another organism
for food.
Dramatic decline in the size of a population over a short period of
time.
Environmental resistance that affects a population regardless of
population density.
Reestablishment of a damaged ecosystem in an area where soil
was left intact.
Theory that states that no two species can occupy the same niche
at the same time.
Graph showing the surviving members of each age group of a
population over time.
Ecological relationship in which one species receives a benefit but
the other species is not affected one way or another.
Dramatic increase in population over a short period of time (Jshaped curve)
Measure of individuals living in a defined area.
Combined biotic and abiotic factors found in the area where an
organism lives.
Number of individuals that the resources of an environment can
normally and persistently support.
Ecological relationship in which two organisms attempt to obtain
the same resource.
Ecological relationship between members of at least two different
species that live in direct contact with one another.
Environmental resistance that affects a population that has become
overly crowded.
Ecological relationship between two species in which each species
gets a benefit from the interaction.
Movement of individual out of a population.
All of the physical, chemical, and biological factors that a species
needs to survive, stay healthy, and reproduce in an ecosystem.
Sequence of biotic changes that regenerate a damaged community
or start a community in a previously uninhabited area.
Population growth that is characterized by a period of slow
growth, followed by a period of exponential growth, followed by
another period of almost no growth (S-shaped curve).
Organisms that share a similar niche but live in different
geographical regions.
Organism that is the first to live in a previously uninhabited area.
Ecological relationship in which organism benefits by harming
another organism.