apes multiple choice

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What is the number of individuals in a population found within a defined area or volume that can limit the size of some populations?

population density

What refers to the ability of a living system to be restored after a period of moderate to severe disturbance?

resilience

Most ecologists now recognize that mature, late-successional ecosystems ____.

are in a state of continual disturbance and change

Bats prey on certain species of moths by using high frequency echolocation to locate their prey. Certain moths have evolved ears that can hear these frequencies allowing them to escape. This is an example of ____.

coevolution

What occurs when an interaction benefits one species but has little, if any, effect on the other?

commensalism

what is the most common interaction between species?

competition

The K-selection reproductive strategy maximizes survival of offspring by producing

few offspring with high levels of parental care

From the ____ point of view, parasites are harmful, but from the ____ perspective, parasites can promote diversity.

host's; population's

Exponential growth followed by a steady decrease in population growth until the population size stabilizes is typical of ____.

logistic growth

a recently flooded land represents which kind of succession

secondary ecological succession

What is succession that begins in an area where an ecosystem has been disturbed, removed, or destroyed, and that contains soil or bottom sediment?

secondary succession

Kelp forests are a very important ecosystem in marine waters by supporting important biodiversity. These kelp forests are threatened by all of the following except ____. a. global warming b. water pollution containing fertilizers c. southern sea otters d. water pollution containing herbicides e. sea urchins

southern sea otters

Which of the following ecological concepts is the smallest level of organization? (community, species, ecosystem, population, genus)

species

The capacity to withstand external stress and disturbance is called ____.

stability

Small populations of animals, such as those typically found on islands, are prone to extinction because

they are more vulnerable to unpredictable events

Which of the following has NOT contributed to the explosion of the white-tailed deer population? a. trapping of deer and moving them out of areas where they are not wanted b. hunting laws restricting their hunting c. many people planting their properties with edible flowers and shrubs d. elimination of many of their natural predators. e. Suburbanization eliminating many forests and creating many edge habitats.

trapping of deer and moving them out of areas where they are not wanted


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