Exam 5: Biodiversity, Species Interactions, and Population Control

When two or more species compete with one another their niches are said to ____________________.

Animal predators tend to kill the sick, weak, aged, and least fit members of a species, therefore increasing the fitness of the prey species.

Use the Figure above to answer the following question(s). -Choose the portion of the curve that results from the interaction of reproductive ability and environmental resistance.

Which of the following would cause a population to overshoot its carrying capacity?

Humans compete with many other species for space, food, and other resources.

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

Vast armies of ____________________ inhabit the digestive tracts of humans and help break down or digest their food.

Species whose ecological niches overlap will be in competition for whatever the resource is in the overlap.

The southern sea otter has been classified as a(n) ____________________ species.

Plants such as bromeliads share a commensalism interaction with large trees in tropical and subtropical forests.The bromeliads are an example of

Which of the following is not a general type of population change?

When plotting the number of individuals in a population against time the data yield a J-shaped curve, which indicates which of the following?

Basic to the theory of evolution are the concepts of environmental resistance and biotic potential.Explain how these concepts are central to natural selection.

The carrying capacity of any given area is not fixed.

Some prey species make themselves larger, startle the predator, or mimic a predator, all of which are called ____________________.

Exponential growth followed by a steady decrease in population growth until the population size levels off is typical of

In communities and ecosystems the types and numbers of species change in response to changing environmental conditions.

When populations of two different species interact over long periods of time, changes in the gene pool of one species can lead to changes in the gene pool of the other.This is called

The southern sea otter is a tool-using mammal.

Population size is determined by which of the following?