A natural community that remains relatively stable over a long period of time may be referred to as a _____ community.
climax
commensal
carrying capacity
cohort
Question 2
The place an organism lives is called its _____.
morbidity
habitat
density-dependent effect
population productivity
Question 3
How far do you need to run to get away from a killer bee attack? (Read Today's Biology) at the end of the chapter.
just a few feet
the bees never quit -- even if you run hundreds of miles
one mile
a couple hundred yards
Question 4
When two species compete for a resource, the species that can use the resource most efficiently will eventually eliminate the other species. This is called _____.
the exponential growth model
a density-independent effect
the principle of competitive exclusion
population demography
Question 5
Which is true of predator-prey relationships?
Predators rarely are responsible for the extinction of a prey species, because as the prey species population drops, the predators begin to starve and die off (or switch to alternative food sources), allowing the prey population to recover.
In nature, it is common for predators to hunt a prey species to extinction. In fact, this seems to be the dominant cause of extinction in the history of life.
Predators can be very destructive to a population, because predators prefer to kill the strongest and healthiest individuals in order to get the most nutritious meal possible.
Predators are so well adapted to their roles that it is rare for a prey animal to be able to escape.
all of the listed choices
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