Ecology & the Environment. Chapter 20 Ecology Study of the interactions that take place among...
29
Ecology & the Environment
-
Upload
madison-curtis -
Category
Documents
-
view
218 -
download
0
description
Chapter 20 Biotic Living parts of the environment; plants animals & microorganisms
Transcript of Ecology & the Environment. Chapter 20 Ecology Study of the interactions that take place among...
Ecology & the Environment
Chapter 20
EcologyStudy of the interactions that take place
among organisms and their environment.
Chapter 20
BioticLiving parts of the
environment; plants animals & microorganisms
Chapter 20
AbioticNon-living parts of the
environment; water, air, light, rocks
Chapter 20
Consumer Organism that cannot create energy-
rich molecules (glucose) but obtains its food by eating other organisms
Chapter 20
ProducerAn organism, such as a plant or alga,
which produces glucose from carbon dioxide by photosynthesis and is a source of food for other organisms
Chapter 20
CarnivoreAnimals who hunt and eat other
animals; meat eater
Chapter 20
OmnivoreAn organism that eats both plants and
animals
Chapter 20
HerbivoreAn animal that eats plants
Chapter 20
Food ChainThe relationship between plants and
animals that shows who eats what. Energy is transferred from one organism to another through the food chain
Chapter 20
Food WebA model of feeding relationships,
describing the connections among all food chains within an ecosystem
Chapter 20
Energy PyramidA representation of the loss of useful
energy at each step in a food chain
Chapter 20
Pyramid of NumbersBased on the number of organisms
needed to make a simple food chain. Shows how large populations of certain organisms are needed to support very small populations of other organisms.
Chapter 20
SymbiosisAn interactive association between two
or more species living together; may be parasitic, commensal, or mutualistic. The relationship between two organisms
Chapter 20
CommensalismA symbiotic relationship in which one
species benefits and the other is not affected
Chapter 20
ParasitismA form of symbiosis in which the
population of one species benefits at the expense of the population of another species
Chapter 20
MutualismA symbiotic interaction between two
species in which both derive some benefit
Chapter 20
CompetitionOne of the biological interactions that
can limit population growth; occurs when two species vie with each other for the same resource
Chapter 20
PopulationAll the organisms that belong to the
same species living in a community
Chapter 20
CommunityAll the populations of different species
that live in an ecosystem
Chapter 20
HabitatPlace where an organism lives and that
provides the types of food, shelter, moisture, and temperature needed for survival
Chapter 20
NicheAn organism’s place in the ecosystem: where
it lives, what it consumes, what consumes it, and how it interacts with all biotic and abiotic factors. A unique ecological role of an organism in a community.
Chapter 20
OrganismAny living thing
Chapter 20
BiospherePart of Earth that supports life,
including the top portion of Earth's crust, the atmosphere, and all the water on Earth's surface
Chapter 20
EcosystemAll the living organisms that live in an
area and the nonliving features of their environment
Chapter 20
Limiting FactorAnything that can restrict the size of a
population, including living and nonliving features of an ecosystem, such as predators or drought
Chapter 20
Carrying CapacityLargest number of individuals of a
particular species that an ecosystem can support over time
Chapter 20
PredatorAn animal that kills and eats other
animals
Chapter 20
PreyAn animal that is killed and eaten by
another animal
