leaapes unit 2

A herpetologist studies the effect of temperature, precipitation, water levels, and day length on the reproductive cycles of a freshwater turtle species. At what level of the ecological hierarchy is this research conducted? A Population B Organism C Ecosystem D Biome

A

Planting trees along the banks of rivers provides which of the following ecosystem services? A Regulating. B Cultural. C Supporting. D Provisioning.

A

Which of the following is an ecological consequence of a forest being clearcut by a large-scale paper company? A Increase in turbidity in a nearby stream. B An increase in paper sales. C A decline in the release of greenhouse gases. D An increase in the availability of canopy cover.

A

Which type of biological diversity does this image of Donax variabilis illustrate? Coquina variation by Debivort (CC BY-SA 3.0) COLOR ROCKS SAME SPECIES ​ A Genetic diversity. B Species diversity. C Community diversity. D Ecosystem diversity.

A

A forest ecosystem can provide many different types of ecosystem services. Which of the following would be a provisioning ecosystem service provided by a forest ecosystem? A Cycling of nutrients. B Fuel for heat. C Recreation. D Control of soil erosion.

B

Groups of individuals of the same species that can interbreed with one another and live in the same general area are BEST known as a A phyla. B population. C community. D family.

B

The TWO main factors that are the basis of the theory of island biogeography are A speciation and immigration. B the size of habitat and distance from the mainland. C extinction and size of the habitat. D availability of resources and speciation.

B

Which of the following BEST describes species richness? A It is the relative abundance of species. B It counts the number of species in an area. C It evaluates how similar the population sizes of different species are to each other. D It measures the genetic diversity of the population.

B

Which of the following islands would MOST likely be dominated by a generalist species? A An island 1 × 10 8 km 1×108 km from the mainland and is 1.5 × 10 2 Ha 1.5×102 Ha. B An island 1 × 10 2 km 1×102 km from the mainland and is 3 × 10 5 Ha 3×105 Ha. C An island 1 × 10 5 km 1×105 km from the mainland and is 1.5 × 10 5 Ha 1.5×105 Ha. D An island 1 × 10 7 km 1×107 km from the mainland and is 3 × 10 2 Ha 3×102 Ha.

B

A lizard species is being studied on two different islands. Island A is 2.25 × 10 5 ha 2.25×105 ha, and Island B is 4.5 × 10 6 ha 4.5×106 ha. Both are located 1 × 10 3 miles 1×103 miles off the coast of Australia. Which of the following would correctly describe the distribution of the lizards on the two islands? A There will be an abundance of lizards on Island A. B The lizards on Island B live within a specialized niche. C There will be a high density of lizards on Island B. D Lizards on Island B are more prone to extinction than on Island A.

C

All of the following are examples of ecosystem services EXCEPT A decomposition of waste. B tourism. C demographic transition. D protection from coastal erosion.

C

Deforestation causes all of the following EXCEPT A reduced primary productivity. B increased erosion. C increased sequestration of carbon dioxide. D reduced water availability.

C

Ecosystem services are services provided by our Earth's ecosystems as they function normally and undisturbed. Biogeochemical cycles would be an example of all of the following ecosystem services EXCEPT A Cycling. B Regulating. C Cultural. D Supporting.

C

Factors That Will Result in an Island of Generalist Species Moderate PREVIOUS NEXT Island Distance from Mainland Size of Island A 1 × 10 6 km 1×106 km 25 ha 25 ha B 1 × 10 8 km 1×108 km 100 ha 100 ha C 1 × 10 3 km 1×103 km 125 ha 125 ha D 1 × 10 4 km 1×104 km 50 ha 50 ha Which of the following will result in a habitat dominated by generalist species? A Island A B Island B C Island C D Island D

C

The greater prairie chicken experienced major population declines in the 20th century due to hunting and habitat destruction. The remaining populations are descendants of about 5% of the ancestral populations and consequently have little genetic variability. Which phenomenon is demonstrated in the case of the greater prairie chicken populations? A The greater prairie chickens experienced divergent evolution. B The greater prairie chickens were subjected to reproduction isolation. C The greater prairie chickens experienced a bottleneck event. D The greater prairie chickens experienced natural selection.

C

Based on the Theory of Island Biogeography, you would predict that small islands far from the mainland would have relatively A High immigration and low extinction rates B High immigration and high extinction rates C Low immigration and low extinction rates D Low immigration and high extinction rates

D

The Colonization of a New Lizard Species Moderate PREVIOUS NEXT Island Distance from Mainland Size of Island Lizard Species Count A 1 × 10 5 km 1×105 km 25 Ha 25 Ha 68 68 B 1 × 10 2 km 1×102 km 100 Ha 100 Ha 212 212 C 0.1 × 10 5 km 0.1×105 km 70 Ha 70 Ha 150 150 Based on the data above, all of the following describe why Islands B and C were colonized with a greater number of a new lizard species EXCEPT A Island A was not the appropriate climate for the lizards. B The lizards did not have as long of a distance to travel to reach Islands B and C. C Islands B and C can contain more lizards due to their size. D The lizards are more likely to stop at Islands B or C when traveling away from the mainland.

D

The environment provides resources, such as clean water, habitat for fisheries and wild game, timber, and pollination of food crops. Additionally, the environment is responsible for cycling nutrients, moderating weather, cleaning water and much more. These benefits are referred to as A natural goods. B provisioning services. C regulating services. D ecosystem services.

D

The size of an island and its distance from the mainland is important in determining which of the following? A Extinction. B Species evenness. C Carrying capacity. D Species richness.

D

Under which condition will a population respond BEST to environmental change? A Small population size. B Large population size. C Low genetic diversity. D High genetic diversity.

D

Which of the following describes the ecological relationships and distribution of organisms to determine species richness? A Ecological succession. B Phylogeny C Conservation. D Island biogeography.

D

Which of the following is LEAST associated with a genetic bottleneck? A Occurs when a population's size is reduced for at least one generation. B A population may not be able to adapt to new selection pressures. C Can have anthropogenic causes. D Over time the genetic diversity will rebound with little trace of the bottleneck event.

D

Which of the following is NOT an ecosystem service provided by wetlands? A Water purification. B Erosion control. C Recreation. D Nutrient-rich soil for cropland.

D