Unit 5 of 5
Study guide for CLEP CLEP Biology — Unit 5: Ecology and Population Biology. Practice questions, key concepts, and exam tips.
85
Practice Questions
20
Flashcards
9
Key Topics
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A forest ecosystem is disrupted by a wildfire, resulting in a significant decrease in the population of deer, a primary consumer. Which of the following is the most likely effect on the ecosystem?
Answer: A — Reduced deer population leads to less herbivory, allowing plant populations to increase.
Species in unpredictable environments often exhibit
Answer: E — r-selected traits is correct because r-selected species are adapted to unstable environments.
What is the name of the international agreement aimed at reducing greenhouse gas emissions?
Answer: B — When you turn on the news and hear about countries working together to combat climate change, you're likely hearing about efforts related to the Paris Agreement. This international agreement aims to reduce greenhouse gas emissions and mitigate the effects of global warming. The Paris Agreement is the correct answer because it specifically targets emissions reductions. In contrast, the Kyoto Protocol, while also focused on emissions, is an earlier agreement that the Paris Agreement built upon.
Environmental unpredictability favors the survival of
Answer: C — R-selected species is correct because r-selected species are adaptable.
What is the primary cause of biodiversity loss worldwide?
Answer: E — Habitat destruction is correct because human activities like deforestation, land conversion, and urbanization lead to the destruction and fragmentation of natural habitats, resulting in population decline and extinction of many species.
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