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APES Unit 2 Test Questions and Answers correct
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APES Unit 2 Test Questions and Answers correct What are the three levels of biodiversity & what is their importance to ecosystems? 1. Genetic diversity: the genetic variation among individuals in a population 2. Species Diversity: The number of species in a region or habitat 3. Habitat/ecos...

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  • December 1, 2024
  • 4
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • apes unit 2 test questions and answers correct
  • what are the three levels of biodiversity what i
  • what are generalist species what is an example s

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APES Unit 2 Test Questions and
Answers correct
What are the three levels of biodiversity & what is their importance to ecosystems? -
answer 1. Genetic diversity: the genetic variation among individuals in a population

2. Species Diversity: The number of species in a region or habitat

3. Habitat/ecosystem diversity: the variety of habitats within a region

Genetic diversity is important because the more genetically diverse a population is, the
better it can respond to environmental stressors.

Species diversity is important because ecosystems that have a larger number of
species are more likely to recover from disruptions.

Habitat diversity is important because loss of habitats leads to a loss of specialist
species, then generalist species. It also leads to reduced number of species that have
large territorial requirements.

What are generalist species? What is an example? - answer Species that can
survive in a wide range of conditions

Deer & racoon

What are specialist species? - answer Can only survive in select conditions & feed
on one or very small groups of species

Which would be expected for a niche specialist - answer A narrow fundamental niche

Species richness v Species evenness - answer Richness = total # of species

Evenness: the abundance of individuals within each species

2 savanna community's both contain 15 plant species. In community A, each of the 15
species are represented by 20 individuals. In community B, 10 of the species are each
represented by 12 individuals, the remaining 5 species are represented by 3 individuals.
Which statement best describes the 2 communties? - answer B has lower species
richness

What are the four categories of ecosystem services? - answer Provisioning,
regulating, cultural, & supporting

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