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Flashcards in Ecosystems Deck (16):
1

abitoic environment

things like sunlight, wind, air composition, temperature, minerals, water

2

biotic environment

things like producers, consumers, decomposers, competition, predation

3

population

all of the organisms of a particular species found in an ecosystem

4

community

all different species living in an ecosystem

5

producer

organism in an ecosystem that can make their own food through photosynthesis

6

decomposer

organism that can decompose (break down) organic material

7

detritivore

organism that feeds on decaying organic material

8

at trophic level one what is the name of this organism

producer

9

pyramids of numbers

represents the number of organisms in each trophic level in a food chain (irrespective of their mass)

10

pyramids of biomass

represents the total mass of the organisms in each trophic level (irrespective of their number)

11

quadrat

a square frame with a measured grid of wire within it used for systematic sampling of organisms

12

you can label all organisms (except producers) with..

a trophic level, consumer level, what sort of things they eat, prey or predator

13

pyramids of numbers should be

to scale 1= 1 square and label the bars

14

how is energy lost at each stage of the food chain

-not all of the organism is eaten
-not all of the organism is digested/absorbed
-some of the energy is lost in respiration to release energy e.g. movement and heat
-some energy is used for growth and reproduction

15

chlorophyll does what

absorbs light for photosynthesis creating a green colour on a plant

16

different plants can absorb light at

different wavelengths