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

1/62

Click to flip

62 Cards in this Set

  • Front
  • Back
  • 3rd side (hint)
Species
most specific level
last level
Population
whole number of organisms occupying one area
many organisms
Community
An interacting population of verious individuals
Ecosystem
the study of relationships between organisms and the living and nonliving factors in the environment
Biome
geographic/climatic region and the large community that lives there
Biosphere
the portion of earth that supports life
Abiotic
a non lving thing
example: water, sun
Biotic
a living thing
example: humans, plants, animals
Herbivore
a plant eating organism
Carnivore
a meat eating organism
Omnivore
a plant & meat eating prganism
Decomposer
an organism that breaks down dead organisms
Predator
moves energy through web, predator consumes prey
Scavenger
Organism that SEEKS out dead or dedcaying organisms for food
food web
a relatinship among organisms i which eah is linked to another that eats, absorbs, or decomposes
Predator-Prey
order in which things are eaten
Commensalism
one species benefits and the other neither benefits or is harmed
Mutalism
both species mutually benefits two species
Parasitism
the parasite benefits at the expense of the host, a good parasite never kills host because than it would have to find another host
Name the three symbiotic relationships
Commensalism, mutalism, parasitism
Autotroph
scientific term referring to any organisms that makes its own food
Heterotroph
the scientific term for any organisms that feeds on other organisms
Succession
general term meaning a gradual change in community over time
True or false -> no relationship exists between lving things and the nonliving environment
false
True or false -> Minerals are abiotic factors i the environment
true
True or false -> Typical biotic factors in a pond include plants, bacteria, and fish
True
true or false -> Organisms do not interact with their environment
False
True or false -> Heterotrophs re a;sp known as producers
False
grass --> rabbits --> hawks is an examaple of ...
A food chain
Succession
a gradueal change in the structure of a community over time
Nutrients
chemical substances that an organism requires to live
ONly 10% of heat of the nergy stored in an organism can be be passed to the next tophic level - of the remaianing energy some is used for its life procces and the rest is WHAT?
lost as heat
the toal portion of the earth that supports life is called ....
biospehere
predation
interaction where an organism captures and feeds on another organism
Host
larger participant ina symbiont relationship
what is successulf parasite?
one that harms the host anad doesn't kill it
what are the two conditions for a self-sustaining ecosystem
needs a relative source of energu and inorgainc & organis nutrients being recycled
what is the difference between chemical energy and free energy
Chemical energy stored in the orgainc molecules which organisms are made & free energy is theportion of energy during a chemical reaction that us able to do work
Habitat
places where specific organisms live
What si the sourceo f energy for a autotroph, heterotroph?
autotroph-sun or inorganic chemicals, heterotoph-chemical energy in food
what is the biggest difference between nonliving and living organisms
a nonliving thing does'nt rekease energy when converting chemical energy
Entropy
measure of the degree of disorganization of a system
what happens when an organism adapts to a new enviro
it gets excluded from another
trophic Structure
of a community is a description of feeding or nutritional relationships among organisms in the community
true or false --> Producers ssuch as plants make up the trophic level that supports the sustem
true
energy Pyramid
a represntation of the tophic structure of an ecosystem i nwhich a decrease in the area at each level of the diagram illustrates the loss of energy available to those organisms living in that trophic levels
10 percent rule
each level recieves one tenth of the energy level below it
wjen two species consume the same resource ...
they compete with each other
NIche
particular combinations of resources that a species is adapted to exploit
Organisms absorb and release WHAT?
nitrogen, oxygen, and carbon
Carbon Cycle
carbon fiaxtion and cell repiration move through the biosphere
what are the 3 elements in the carbon cycle?
carbon, oxygen, and hydrogen
water cycle
water returns through transpiration, cell respiration , and evaporation
Nitrogen Cycle
prokaryotes convert nitrogen in the atmosphere to amonia through nitrogen fixation
Boundaries of biomes are usually indestinct because...
changes in climate form place to place are gradual
what determines where a biome is
climate, temperature, precipitation,altitdue, latitdue
Terrestrial biome
living onor growing from land or relating to terrestiral organisms
Aquatic bioiime
growing or living in water
What is a limiting factor ina aquatic biome?
the amountof light it gets
Primary succession
begins on bare rock, glacier deposits, or ina lake bed
Secondary succession
takes place on a disturbed site where soil is present
Climax Community
when a web of interaction is so interaction is so intricate no other species can fit unless another disappears