Environmental questions

_____ ecology refers to studying how different species interact rather than studying one population alone or one ecosystem, or how species interact with their environment.

Flag this QuestionQuestion 21.5 pts

Species ______ refers to inventorying all of the different kinds of species found in one area.

Flag this QuestionQuestion 33 pts

Which of the following statements are true regarding the following population growth figure? Choose all that apply.

pop fig.jpg

Group of answer choices

A represents an exponential period of population growthOnly r-selected species exhibit the style of population growth shown at letter A

The axis denoted by an “E” represents population growth

Pressure from density independent limiting factors would increase the value of B

B represents the minimum number of species an area can support

D shows a period of logistic population growth

Flag this QuestionQuestion 43 pts

Which of the following statements is true regarding the plot of the Southern Resident Killer Whale population below as well as what you’ve read this week. Choose all that apply.

res whales.jpg

Group of answer choices

Orca whales are not currently undergoing logistic population growth.Lack of food is one of the density independent factors limiting the orca whale population.

The carrying capacity for orca whales in Puget Sound is around 70 whales.

Climate change is one of the density independent factors limting orca whale population growth.

Between 1972 and 1995, orca whale population grew by nearly 50%.

Orca whales were experiencing exponential growth in 1996.

Flag this QuestionQuestion 53 pts

Match the threats to the Southern Resident Killer Whale population to the best response for the way in which they affect orca whales.

In case these get cut off, the options include:

Interferes with orcas ability to locate food and maintain social structure
Interferes with orcas ability to fight off disease and reproduce successfully, causing high infant mortality
Interferes with orcas ability to grow and reproduce

Group of answer choices

Boat noise

Bioaccumulative pollutants

Lack of Fraser River Chinook salmon

Flag this QuestionQuestion 62 pts

Some of the protections given to orca whales as a result of their population decline include . . . (choose all that apply):

Group of answer choices

continued scientific research by NOAA Fisheriesa minimum distance that whale watching operators can approach

the removal of the Snake River dam

captive breeding

listing under the Endangered Species Act

the release of hatchery fish to augment the salmon population

Flag this QuestionQuestion 71 pts

Community ecology is a study that includes examining the relationship between species and abiotic factors in the environment.

Group of answer choices

TrueFalse

Flag this QuestionQuestion 83 pts

Based on the diagrams of community interactions in Puget Sound, the following statements are true . . . (choose all that apply). (The figure is on the What to do Module page and here: https://www.pugetsound.edu/files/resources/foodweb18feb2013.jpgLinks to an external site..

Group of answer choices

No species consume detritusKiller whales, in the fifth trophic level, strictly consume species in the fourth trophic level

If orca populations decline, baleen whale populations would increase

Changes in the orca population affect all other trophic levels, including primary producers

Seals are generalists, consuming many different species

Krill and copepods interact via species competition

Flag this QuestionQuestion 92 pts

An organisms life history strategy is defined by three competing goals: growing, ____ and reproducing.

Group of answer choices

competingdying

surviving

eating

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