9. Draw a table with r-strategists in one column and K-strategists in the other. List the characteristics that
apply to each.
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Explanation:
The following table compares some characteristics of organisms which are extreme r or K strategists:
r
Unstable environment, density independent.
small size of organism.
energy used to make each individual is low.
many offspring are produced.
early maturity.
short life expectancy
each individual reproduces only once
individuals can reproduce more than once in their lifetime.
K
Stable environment, density dependent interactions.
large size of organism.
energy used to make each individual is high.
few offspring are produced.
late maturity, often after a prolonged period of parental care.
long life expectancy.
type III survivorship pattern
in which most of the individuals die within a short time.
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