Environmental Science Chapter 8 Understanding Populations
Each of the following is an example of a parasite except
a cow in a pasture
An example of a population is
all maple trees in a forest
Which of the following statements is correct?
an organisms habitat is a location
The number of wild horses per square kilometer in a prairie is the horse populations
density
Which of the following is not an example of exponential growth?
reindeer of the Pribilof Islands eating most of the lichens
A true statement about parasitism is that parasites
may cause their hosts to become more vulnerable to predators
The relationship between acacia trees and the ants that live on them is an example of
mutualism
Which of the following is one of the main properties used to describe a population?
number of individuals
The relationship between a Canadian lynx and a snowshoe hare is an example of
predator and prey
An example of a population would be all
red maples in a forest
2 adults in a population had only 2 offspring and they lived to reproduce, the population would
remain the same
Which of the following has the greatest effect on reproductive potential?
reproducing earlier in life
Which of the following populations has a random dispersion?
solitary snakes in a desert
The carrying capacity for a particular species at a particular time is determined by the
supply of the most limited resources
Which of the following statements is not correct?
symbiosis is a relationship in which 2 organisms live apart
Which of the following reproductive situations will limit a population's biotic potential?
the maximum number of offspring each individual can produce
A female dog's niche includes all of the following except
the neighbor's enclosed yard
The density of a population is
the number of individuals per unit area
Which explains why the growth of orchids on branches of tropical trees is commensalism?
the trees are neither benefited nor harmed
The difference between a predator and a parasite is that a predator
usually kills and eats its prey
Which would most likely cause a large number of density-independent deaths in a population?
winter stroms
A species has exponential growth after it is introduced. Which describes exponential growth?
Within a few years the population increases dramatically
Which of the following organisms has the highest reproductive potential?
bacteria
Thick fur on deer is not an example of coevolution. Why?
because thick fur evolved in response to a cold climate
Competition for food cannot occur
between animals from two different ecosystems
In which of the following relationships is neither species harmed?
commensalism