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APES Unit 2 Living World Questions and Answers
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APES Unit 2 Living World Questions and Answers Ecology Study of the interactions between living things and their environment. Population A group of the same species in the same area. Community Different species in the same area. Ecosystem All members of a community and the...

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

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  • apes unit 2 living world questions and answers
  • ecology study of the interactions between living t
  • population a group of the same species in the same

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APES Unit 2 Living World Questions and
Answers
Ecology - answer Study of the interactions between living things and their
environment.

Population - answer A group of the same species in the same area.

Community - answer Different species in the same area.

Ecosystem - answer All members of a community and the nonliving things they
interact with in the same area.

Biosphere - answer Sum of all the ecosystems on earth (includes part of the
atmosphere, hydrosphere, and lithosphere).

Abiotic Factors - answer The nonliving components of an ecosystem.

Limiting Factors - answer Controls population growth.

Biotic Factors - answer Living components of an ecosystem.

Ecological Niche - answer A species' functional role in its ecosystem.

Competitive Exclusion Principle - answer Two species cannot occupy the same
niche indefinitely.

Resource Partitioning - answer The use of the same resource by different species,
but in different times, ways, or places.

Fundamental Niche - answer If no competitors are present, a species will occupy
this.

Realized Niche - answer The role a species plays in an ecosystem in reality, with
competitors present.

Generalist - answer A species that has a broad niche and is successful in changing
environments. Ex. Mountain Lion, Rats, Raccoons

Specialist - answer A species with a narrow niche and is successful in a stable
environment. Ex. Northern Spotted Owl, Giant Pands

, Interspecific Competition - answer When two species both require the same
resource.

Intraspecific Competition - answer When there are conflicts over resources within the
same species.

Symbiosis - answer The close, intimate relationship between two species.

Parasitism - answer A type of symbiosis where one species, usually the smaller
species, benefits from a host, while the host is weakened (but rarely killed).

Mutualism - answer Symbiosis where both species benefit. Ex. clownfish and sea
anemone.

Commensalism - answer Symbiosis where one species benefits and the other is
unaffected. Ex. sharks and remora.

Predation - answer Where one animal feeds on another.

Keystone Species - answer An organism that plays an integral role in the ecosystem
insofar that they effectively control the ecosystem.

Relative Species Abundance - answer Determines biodiversity, expressed as a
percent. How many of an organism compared to other organisms. Low in areas of high
diversity.

Species Richness - answer Determines biodiversity, number of different organisms.
High where biodiversity is high.

Tropical Rainforest - answer Highest terrestrial biodiversity (due to parasites and
diseases).

Coral Reef - answer Highest aquatic biodiversity.

Edge Effect - answer When the barrier between two ecosystems has different abiotic
factors that are different from either ecosystem.

Biome - answer Large region with a distinct climate and vegetation.

Temperate/Deciduous Forest - answer Country with most of this biome: USA
Seasonal, drops leaves in fall. Leaf litter, rich soil layer, adopted to fire.

Taiga/Boreal Forest - answer Country with most of this biome: Russia
60 degrees north, low plant diversity, cold, slow decomposition, acidic soil, waxy
needles difficult to break down, coniferous trees.

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