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Flashcards in Ecosystems Deck (24)
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1

Sustainability

the resources of nature are being renewed at least as quickly as they are used

2

Ecological footprint

how much of an impact a person has on the environment with their lifestyle choices

3

what materials that you use contribute to calculating your ecological footprint?

food, water, supplies to build shelters

4

what are the three r's?

Reduce, reuse, recycle

5

biotic

two living parts of an ecosystem interacting in an environment

6

what is an example of a biotic relationship?

a lynx and a hare

7

What are abiotic parts of an ecosystem?

air, water and soil

8

An abiotic relationship would be

How a rabbit's fur turns white in the winter to blend in with the snow

9

Niche

organisms in an ecosystem play different roles

10

What kind of niche do plants and algae full?

Producers

11

Producers

organisms make food energy for themselves

12

Consumers

niche is to consume food made by producers

13

What are the three niches in an ecosystem

Producer, consumer, decomposer

14

Herbivores

animals that eat producers and fill the plant eating niche

15

Carnivores

animals that eat other consumers, filling the meat eating niche

16

Predators

consumers that kill and eat other animals called prey

17

omnivores

animals that eat both producers and consumers

18

food chain

a model that shows how energy stored in food passes from organism to organisms

19

energy flow

the movement of energy, starting from the sun and passing from one organism to the next

20

food web

network of interconnected food chains

21

pyramid of numbers

shows the number of organisms involved in a food chain

22

biomass

the total mass of all organisms in an ecosystem

23

Scavengers

organisms that feed on dead or decaying plant or animal matter

24

decomposers

a different kind of scavenger that grows on or in dead or waste material. They absorb some of the nutrients into their own cells and the remaining nutrients recycle back into the ecosystem