APES Semester 1 Final Exam Review

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What is biological diversity?

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Biological diversity, or biodiversity, refers to the variety of life forms in a given ecosystem, including the number of species, genetic variation within those species, and the ecological complexes they are part of.

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What factors can be used to assess biological diversity?

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Key factors include genetic variation within each species and the number of species present in an area.

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What is the impact of tilling in agriculture?

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Tilling can lead to soil erosion and compaction, and it can contribute to eutrophication due to excessive fertilizer runoff.

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What is eutrophication?

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Eutrophication is the process by which water bodies become overly enriched with nutrients, leading to excessive growth of algae and depletion of oxygen.

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What is drip irrigation?

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Drip irrigation is an efficient irrigation method that delivers water directly to the roots of plants through a system of tubes and emitters.

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What are r-strategists and K-strategists?

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R-strategists are species that reproduce quickly and in large numbers, while K-strategists are species that invest more time and resources in raising fewer offspring.

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What is the carbon cycle?

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The carbon cycle is the biogeochemical cycle through which carbon is exchanged among the biosphere, geosphere, hydrosphere, and atmosphere.

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What is the water (hydrologic) cycle?

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The water cycle describes the continuous movement of water on, above, and below the surface of the Earth, including processes like evaporation, condensation, and precipitation.

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What is the phosphorus cycle?

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The phosphorus cycle is the biogeochemical cycle that describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere.

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What is the significance of genetic variation?

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Genetic variation is crucial for the survival of species as it enables populations to adapt to changing environments and resist diseases.