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

1/30

Click to flip

30 Cards in this Set

  • Front
  • Back
range of tolerance
a population reactions to variation in it's physical and chemical enviroment
Limiting factor
too much or too little of a abiotic factor can prevent population growth in an environment
Producers/Autotrophs
make their own food from compounds and energy obtained from their environment
Photosynthesis
producers capture sunlight to produce carbohydrates
consumers (hetrotrophs)
get the energy and nutrients they need by feeding off of other organisms or their remains
herbivores (Primary Consumers)
they eat Producers
carnivores (secondary consumers)
eat on herbivores
high consumers
carnivores that eat carnvores
Omnivores
eat planets and animals (Herbivores and carnivores)
decomposers
organisms that recycle nutrients in ecosystems
detritivors
insects that feed off of wastes and dead bodies of animals
aerobic respiration
oxygen is used to convert organic nutrients back into carbon dioxide
anaerobic repiration
glucose is used to convert compounds into gas, acid, and hydrogen sulfide
biodiversity
earth's most important renewable resource
HIPPO
H=habitat destruction
I=Invasive Species
P=Polluyion
P=population growth
O=Overexploitation
food chain
a series of organisms each of which is a source of food for the next
trophic level
an organism's assigned feeding level
biomass
the dry weight of all organic matter contained in its organisms
ecological efficiency
the transferred biomass from one trophic level to the next
pyramid energy flow
shows the energy loss for a simple food chain
Gross primary productivity
(GPP) the rate at which an ecosystem's producers convert solar energy into chemical energy as biomass
Net Primary Productivity
(NPP) is the rate at whice the producers use photosynthesis to store energy
Soil
is a thin covering over most land that is a complex mixture of eroded rock, mineral nutrients and other matter
weathering
process when bedrock is broken down into soil
soil horizons
soils that have develped over a long time and are layers in the earth
soil Profile
cross section view of horizons in soil
humus
a mixture of decomposed bodies of dead plants and animals
infiltration
the downward movement of water through soil
leaching
as it moves downward the water dessoloves varries minerals to lower layers
soil texture
the relative amounts of the different sizes and types mineral particals