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Chapter 8 - Understanding Populations

Name: ____________________________
Across
A population's _____ is the relative distribution or arrangement of individuals within a given amount of space.
A relationship between 2 species in which on species benefits and the other is neither harmed nor helped.
A change in the size of a population over a given period of time is that population's ______ rate.
The growth rate is the birth rate ______ the death rate.
The maximum population of a species that an ecosystem can support indefinitely.
Interaction between 2 species in which one species lives on (or in) and feeds on the other.
Natural disasters and severe weather may result in density _______ population regulation.
________ competition is when species compete even if they never come into direct contact with each other.
A population's dispersion may be even, _______, or random.
Limited resources, predation,and disease result in density _______ population regulation.
A relationship in which two organisms live in close association.
Down
A relationship in which different individuals or populations attempt to use the same limited resource.
Growth that is faster and faster, ie. rate of growth increases.
A population's ________ is the number of individuals per unit area or volume.
A species' _______ potential is the fastest rate at which its populations can grow.
The maximum number of offspring that each member of a population can produce is ______ potential.
Interaction between 2 species in which one species kills and eats the other.
All the members of a species living in the same place at the same time.
A close relationship between 2 species in which each species provides a benefit to the other.
A _______ resource for a species is consumed by that species at the same rate at which it is produced.
The unique role of a species within an ecosystem.
An area defended by one or more individuals against other individuals.