Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/32

Click to flip

32 Cards in this Set

  • Front
  • Back
Ecology
the study of interactions of organisms with one another and with their physical surroundings.
Organisms
an individual
Species
a group of organisms that share similar characteristics and can interbreed with one another.
Population
group of 1 species
Community
interacting populations (more then 1 species)
Ecosystem
: communities and their physical surroundings
Biosphere
where life can live
Niche
place where organisms live and its role in community
Habitat
– place where organism live its life
Biome
a grouping of all ecosystems of a similar type (ex: Desert)
Landscape
a group of interaction ecosystems in a particular area
Biotic Factor
Living things that directly or indirectly affect the organism in its environment.
Abiotic Factor
Non-living physical and chemical factors which affect the ability of organism to survive and reproduce.
Symbiosis
a close, permanent relationship of different species
Commensalisms
1 Benefits, other is not harmed
Parasitism
1 benefits, other is harmed
Mutualism
Both benefit
Producers
organism that is able to make its own food from inorganic substance
Consumers
: organism that gets its energy directly or indirectly from producers
Decomposers
animal that feeds on tiny bits of decaying plants and animals
Marine Zones
Intertidal - land meets water
Neritic - shallow regions
Oceanic - deep water
Pelagic - open water
Benthic - seafloor
Steady State
when average growth rate is zero
Carry Capactiy
Size of population during steadt state
Density-dependent limiting factor
Factors that control population size and operate more stongly on large populations then small.
Density-independent limiting factor
Factors that control population size regardless of how large the population is
Birth Rate
the ratio of total live births to total populations in a specific community or area over a specific period of time.
Death Rate
the ratio of total deaths to total populations in a specific community or area over a specific period of time.
Biodegradable waste
materials that can be degraded or brokebn down by microrganisms into essential materials
Non Biodegradable waste
Materials that canno be broken down by natural processes
Smog
air pollution consisting of smoke and fog creating a haze
Acid Rain
Pollution in the air that combine with water vapor to form droplets of acid
Greenhouse effect
an increase of carbon dioxide and other gasses in the atmosphere that absorb