Ecology And How To Do It - Essentials of Ecology

One researcher studies plant cells and how these cells and plants respond to increased concentrations of carbon dioxide.Another researcher studies how multiple species interact and what affects their abundances and distributions.A different researcher studies a species' DNA and what changes have occurred between populations as a result of evolution.What do these researchers all have in common?

A) They all study community ecology since each researcher is interested in what happens within communities
B) They are all interested predator-prey interactions
C) They all study one of the many levels of biology with some application to ecology
D) They all study organismal biology since each researcher only studies the response of single-celled organisms

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Question 2

(Multiple Choice)

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An ecologist wants to study what plants colonize a site after a volcano has erupted.She plans to compare what plant species were once there with what plant species begin to grow in a matter of a few months.What term best describes the process she is interested in studying?

A) Unnatural history experiment
B) Ecological succession
C) Organismal ecology
D) All of the above

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Question 3

(Multiple Choice)

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Introduced brown trout (Salmo trutta)in New Zealand negatively affected lake systems by:

A) Disturbing mayfly behavior, which resulted in fewer invertebrates feeding on algae
B) Introduced brown trout did not affect lake systems; rainbow trout that they coexisted with caused the negative effect
C) Brown trout were never introduced to New Zealand
D) Macroinvertebrates feeding on algae over grazed, and as a result lakes became eutrophic and brown trout died

Answer