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

1/45

Click to flip

45 Cards in this Set

  • Front
  • Back
criteria
certain requirements
food web
a diagram that consits of many connected food chains in a community.
energy pyramid 2
solar energy- producer, heat- consumer, heat- decomposer
environment
surroundings; the whole complex of factors (as soil, climate, and living things) that influence the form and the ability to survive of a plant or animal or ecological community.
carrying capacity
the maximum (optimum) amount of animals of each species that an evironmental ecosystem can provide for
population
the total number of any one species living in a community
6 terrestrial biomes
tundra, taiga, Grassland (savannah, temperate), temperate forest, tropical rainforest, desert
abioric factors
physical factors that limit an organism in a habitat/community/environment
two laws of thermodynamics
1. energy cannot be created or destroyed
2. energy is always moving downhill; it can be lost but not gained
consumer
is a organism that hunts and kills its food
adaptation
a genetically controlled characteristics that aid and organism to survive and reproduce in the environment it in habits
carnivore
an organism that only eats meat
death rate
number of individuals that die over length of time- rate of a species death
food chain
a reprentation of food energy and mass being transferred from one organism to the next.
birth rate
the rate of how fast organisms are born - # of individuals born over time
producer
an organism (usually plants) that create their own food by using solar energy
acute event
event that only effects an ecosystem for a short period of time
Immigration
movement into a community
chronic event
an event that effects the environemt for along period of time (overtime)
list abiotic factors
Rainfall (water)
Heat
soil
light and air
species diversity
the approximate number of different species in a biome
habitat
the place where a species of plant or animal normally lives (specific organisms)
aquatic
water
predator
an organism that hunts and kills prey
movement of pollutants through food chain
Pollution moves through food chain quickly, and increases as it goes up in the pyramid
Niche
an organisms's role in an ecosystem which includes everything the organism does and everything it needs in an ecosystem.
balance of nature
the steady conditions n the natural environment which keep organisms populations realitily constant
prey
an organism that is hunted by a predator
terrestrial
land
omnivore
an organism that eats plants and meat
2 aquatic biomes
salt/fresh water
decomposer
decomposes or breaks down dead plants and animals
ecosystem
is a community of organisms that interact with each other and which are limited by physical factors in their environemt
ecology
the study of organisms in their natural environment
conservation
the preservation and protection of natural resources and organisms
Community
all living things in a certain area
herbivore
an organism that only eats plants
energy pyramid
a diagram that shows how energy is used in a food chain; each successive level of the pyramid that has less energy.
competition
interavtion- the simultaneous demand by two or more organisms for limited environmental resources
emigration
movement out of a community
scavengers
an organism that eats dead ans decaying organisms
cooperation
interaction- an act in which two or more organisms work together to survive
territory
a certain are defended by animals
biotic factors
interaction between living organisms in their environment/community/habitat
nocturnal
being active at night