4.1
Environmental factors that are not associated with the activities of living organisms which include air, water, rocks, and temperature
Abiotic factors
Biotic factors examples
Animals, dead parts of organisms, organisms' waste products, plants, and dead organisms
Animals and plants usually cannot survive for long periods of time...
Away from their natural habitats
Environmental factors that are associated with or result from the activities of living organisms including dead organisms, and the waste products of organisms
Biotic factors
Birds can/cannot migrate from state to state
Can
Pollen can/cannot blow from a forest into a field
Can
Soil can/cannot wash from a mountain into a lake
Can
Groups of various species that live in the same habitat and interact with each other
Communities
Ecosystems do/do not have clear boundaries
Do not
Biotic parts of an ecosystem interact with ____ ____ and with _____ ___
Each other, abiotic factors
Communities of organisms and their abiotic environment
Ecosystems
What basic components do ecosystems need in order to survive
Energy, mineral nutrients, water, oxygen, and living organisms
T/F Members of a species must all live in the same place
F
T/F Things do not move from one ecosystem to another
F
Land communities are often dominated by what?
Few species of plants
Places where an organism usually lives
Habitat
What is an important characteristic of a population?
Its members usually breed with one another rather than with other population members
What is an ecosystem made up of?
Living and nonliving things
Biotic factors are the ______ and ______ parts of an ecosystem
Living, once-living
Every organisms is a ______ of a _____
Member, species
Abiotic factors are the ______ parts of an ecosystem
Nonliving
Two examples of an ecosystem
Oak forest or coral reef
________-________-_______-__________-________
Organism, population, community, ecosystem, biosphere
Living things that can carry out life processes independently
Organisms
Every population is _____ of a _____
Part, community
Each organism lives as a ____ of a ____
Part, population
Two components of land ecosystems
Plants and rocks
Groups of organisms of the same species that live in a specific geographical area and interbreed
Populations
Groups of organisms that are closely related and can mate to produce fertile offspring
Species
Every habitat has what?
Specific characteristics its organisms need to survive
Organisms tend to be very well ____ to their ____ _____
Suited, natural habitats
Where does most of the energy of an ecosystem come from?
Sun
Abiotic factors examples
Temperature, air, water, rocks, sand, and light
What is the most obvious difference between communities?
Types of species they have
Scientists organize the abiotic and biotic factors into what
Various levels
The plants of a land community often determine what?
What other organisms can live in that community
What happens if one part of an ecosystem is destroyed or changed?
Whole system will be affected
