Exam 3: Evolution,biodiversity,and Population Ecology

A) clumped
B) logarithmic
C) uniform
D) random
E) clustered

Correct Answer

verified

Show Answer

Correct Answer

verified

Among many observations that can be made...

View Answer

Show Answer

A) a group of individuals of a single species that live and interact in one area
B) a group of individuals of several interacting species that live in one area
C) a group of cells that have similar function
D) a group of individuals of several interacting species that interact in multiple ecosystems
E) the sum of all individuals of a species in all locations

Correct Answer

verified

A

Correct Answer

verified

Students might discuss the r -selection strategy of quail and their potential for exceeding the population's typical carrying capacity in a "good" year with mild weather and plentiful food.They might talk about the population distribution (clumped).They might choose to discuss the survivorship curve (type III),involving the large number of eggs and chicks and the rapid loss of young.Density -independent factors would include things such as weather and drought or floods.Some density -dependent factors might be disease,predators,available nesting sites,and the amount of food available.

A) Hawaii
B) Guam
C) Japan
D) Tuvalu
E) Marshall Islands

Correct Answer

verified

Show Answer

A) become more scarce as population growth rate decreases
B) increase in supply as the population size decreases
C) increase in supply because the population size is decreasing
D) generally become infinite in supply
E) decrease in supply but are more accessible to competitors

Correct Answer

verified

Show Answer

A) lizards and crocodiles
B) lampreys and sharks
C) mammals and turtles
D) bony fish and birds
E) lungfish and amphibians

Correct Answer

verified

Show Answer

A) linear growth
B) pyramidal growth
C) emigration
D) exponential growth
E) immigration

Correct Answer

verified

Show Answer

A) the placement of a species within a country's boundaries
B) the spatial arrangement of multiple species within a particular area
C) how near or far away individuals in a population are from a resource,such as water
D) the spatial arrangement of individuals of a single species within a particular area or ecosystem
E) the placement of a species around the globe

Correct Answer

verified

Show Answer

A) breeding wild cabbage to create broccoli and cauliflower
B) inserting a gene for herbicide resistance into soybeans
C) chimney swifts adapting to human presence and selectively nesting in chimneys
D) choosing what kind of holiday greenery to purchase
E) crossing a lion and a tiger to get a sterile animal called a liger

Correct Answer

verified

Show Answer

A) more likely to go extinct than a niche generalist
B) more likely to thrive in human -modified environments than a niche generalist
C) more likely to use a wide variety of resources than a niche generalist
D) more likely to have a large geographic distribution than a niche generalist
E) more likely to adapt to climate change than a niche generalist

Correct Answer

verified

Show Answer

A) the spread of an invasive bird species that has been introduced to some of the islands
B) the processes by which the various species of finches on the islands diverged from a common ancestor
C) the geological processes by which the islands were formed millions of years ago
D) the processes by which several unrelated species of birds developed flightlessness as a result of the islands' lacking natural predators
E) the similarities that have arisen between two completely unrelated species of birds that are competing for the same resources

Correct Answer

verified

Show Answer

Correct Answer

verified

Currently,most biologists believe that Earth is experiencing its sixth mass extinction event and that we are the cause.The changes to Earth's environment by human population growth,resource use,and development have greatly altered conditions for many species,have driven many to extinction already,and are threatening countless more.The alteration and outright destruction of natural habitats,the hunting and harvesting of species,pollution,and the introduction of invasive species from one place to another have contributed to the threat to Earth's biodiversity.

A) a colony of leafcutter ants and the leaves they harvest for their fungal garden
B) a colony of leafcutter ants,the leaves they harvest,the fungi that they cultivate and tend to,and the soil nutrients and moisture needed for their garden
C) a colony of leafcutter ants,the leaves they harvest,and the fungi that they cultivate and tend to
D) a colony of leafcutter ants living in a forest
E) These are all examples of ecosystems.

Correct Answer

verified

Show Answer

A) a pod of 40 migrating gray whales in the Bering Sea
B) pine trees within a pine plantation
C) earthworms within the soil of a garden
D) eagles nesting in the tallest trees in the Grand Canyon
E) oaks planted on city streets

Correct Answer

verified

Show Answer

A) elephant; whale
B) grasshopper; whale
C) pine tree; dandelion
D) dandelion; pine tree
E) elephant; pine tree

Correct Answer

verified

Show Answer

A) are generalist organisms
B) have high rates of mutations that lead to large numbers of offspring species
C) are found only in one place on the planet
D) cause disease
E) are invasive species that cause extinction

Correct Answer

verified

Show Answer

A) are r -selected
B) show the initial stages of the extinction process
C) have escaped from the processes of natural selection and adaptation
D) are K -selected
E) are not subject to density -dependent limiting factors

Correct Answer

verified

Show Answer