Environmental Science Chapter 8: Populations

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The number of wild horses per square kilometer in a prairie is the horse populations

Density

True or False: Yucca moths and yucca plants have a symbiotic relatioship`

False

If a population of rabbits experiences growth, which might happen to the population of coyote (predator) in the area?

Increase

A true statement about parasitism is that parasites

May cause their host to become weak or vulnerable

The functional role of a species within an ecosystem

Niche

What is used to describe population?

Number of individuals

Aphids obtain the nutrients they need by sucking on the juices of host plants. This will later weaken the plants. What type of relationship is this?

Parasitism

A territory is

an area defended by one or more individuals

One of the three main properties of a population

density

a reduction in population size caused by a natural disaster

density independent regulation

What can occur if a population has plenty of food and space and has no competition or presators?

exponential growth

The ratio of births to deaths in a population

growth rate

the location where an organism lives

habitat

Bacteria in your intestines are an example of mutualism if they

help you break down food

The difference between a predator and a parasite is that a predator

kill their prey

close interaction between two species in which one organism is harmed

parasitism

maximum number of offspring that each member of a population can produce

reproductive potential

The "co-" in co-evolution means

together

The relationship between a Canadian lynx and a snowshoe hare is an example of

???

Each of the following is an example of a parasite.

A cow in a pasture

Different species can experience competition with one another because

A portion of their niche overlaps

What is an example of a parasite?

A worm in your intestine

An example of a population is

All maple trees in a forest

What organism has the highest reproductive potential?

Bacteria

In which relationship is neither species harmed?

Commensalism

What has the greatest effect on reproductive potential?

Reproducing more offspring at a time + Doing it at an earlier time in life

The density of a population is

The number of individuals per unit area

True or False: An organism's habitat is a location

True

What would most likely cause a large number of density-independent deaths in a population?

Tsuanmi

What is NOT a density-dependent cause of death in a population?

Weather

A species of plants has eponential growth after it is introduced into an area where it has never lived. What statement describes expontial growth?

Within a few years the population increases dramatically

maximum population that an ecosystem can support indefinitely

carry capacity

development of adaptations as a result of symbiotic relationships

coevolution

Interaction between two species in which both arehaamred

competition


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