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AP Biology - Unit 8 Ecology Exam Questions With Correct Answers $10.49
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AP Biology - Unit 8 Ecology Exam Questions With Correct Answers
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AP Biology - Unit 8 Ecology Exam Questions With Correct Answers Ecology - answerstudy of the distribution and abundance of organisms and their interactions with other organisms and with their physical environment population - answergroup of individuals of the same species living in the same are...

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  • August 27, 2024
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  • 2024/2025
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  • ap biology unit 8 ecology exam questions with co

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©THEBRIGHT EXAM STUDY SOLUTIONS 8/21/2024 1:28 PM



AP Biology - Unit 8 Ecology Exam Questions
With Correct Answers


Ecology - answer✔✔study of the distribution and abundance of organisms and their interactions
with other organisms and with their physical environment

population - answer✔✔group of individuals of the same species living in the same area

community - answer✔✔group of populations of different species living in the same area

ecosystem - answer✔✔interrelationships between organisms in a community and their physical
environment

biosphere - answer✔✔composed of all the regions of the earth that contain living things
(hydrosphere, geosphere, and atmosphere)

habitat - answer✔✔type of place where an organism usually lives; descriptions typically include
the organisms and the physical and chemical characteristics of the environment

niche - answer✔✔all biotic and abiotic resources in the environment used by an organism

biotic factor - answer✔✔A living part of an ecosystem

abiotic factor - answer✔✔physical, or nonliving, factor that shapes an ecosystem

climate - answer✔✔long-term prevailing weather conditions in a given area; major components
include temperature, precipitation, sunlight, and wind

biome - answer✔✔large region of the earth whose distribution depends on the amount of
precipitation and temperature in an area; characterized by dominant vegetation and animal life

population growth is described by... - answer✔✔biotic potential, carrying capacity, and limiting
factors

population size - answer✔✔symbolically represented by N
it is the total number of individuals in the population

population density - answer✔✔total number of individuals per area or volume occupied

, ©THEBRIGHT EXAM STUDY SOLUTIONS 8/21/2024 1:28 PM
population dispersion - answer✔✔describes how individuals in a population are distributed

clumped dispersion - answer✔✔most common pattern, like humans in cities or schools of fish

uniform dispersion - answer✔✔like trees in an orchard, or plants with toxins

random dispersion - answer✔✔like trees in a forest; occurs because of special attractions or
repulsions

age structure - answer✔✔describes the abundance of individuals of each age

survivorship curves - answer✔✔describe how mortality of individuals in a species varies during
their lifetimes

type I survivorship curve (K- strategist) - answer✔✔describe a species in which most individuals
survive to middle age; after that age, mortality is high.
example: humans

type II survivorship curve (c- strategist) - answer✔✔describe organisms in which the length of
survivorship is random, that is, the likelihood of death is the same at any age
example: rodents, invertebrates

type III survivorship curve (r-strategist) - answer✔✔describe species in which most individuals
die young, with only a relative few surviving to reproductive age and beyond
example: oysters, species with free-swimming larvae

biotic potential - answer✔✔maximum growth rate of a population under ideal conditions with
unlimited resources and without any growth restrictions

carrying capacity - answer✔✔maximum number of individuals of a population that can be
sustained by a particular habitat

limiting factors - answer✔✔elements that prevent a population from attaining its biotic potential;
can be density-dependent or density-independent

density-dependent factors - answer✔✔limiting effect becomes more intense as the population
density increases
examples: parasites and disease, competition, toxic effect of waste products, predation, stress

density-independent factors - answer✔✔occur independently of the density of a population
examples: natural disasters and climate extremes
r-strategist

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