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Biology > Ecology > Flashcards

Flashcards in Ecology Deck (24):
1

a particular area inhabited by plants and animals

habitat

2

how an organism is suited to live in a particular place

adaptation

3

the range of different species in an environment

biodiversity

4

the arrows in a food chain show...

transfer of energy between organisms

5

how much energy is lost in each transfer

90%

6

all the energy in the food chain originates from

the sun

7

if a primary consumer's population decreases, what is the effect

increase of producer population, decrease in secondary consumer population

8

what type of diagram shows how feeding relationships are interlinked

food web

9

plants compete for... (3)

light
minerals
water

10

farmers get rid of weeds with

herbicide

11

pesticides can end up in... (2)

rivers and streams

12

if a pesticide got into a lake, which organism would have the highest level (plants, fish, osprey)

osprey

13

what modern techniques do farmers rely on to ensure maximum crop yields (2)

pesticides and fertilizers

14

fertilizers washing into rivers can cause this

eutrophication

15

organic food is better for you because

it is grown without the use of artificial fertilizers and pesticides

16

the biggest impacts on the environment are made by

humans

17

improving the lives of today's people, without damaging the quality of life for future generations

sustainable development

18

farming crises and food scares arise because

man has interfered too much with natural food production

19

the rio declaration encourages people to

act local, think global

20

10,000 units of energy available to a producer, how many available to the tertiary consumer

10 units

21

10,000 units of energy available to a producer, how many lost before getting to the tertiary consumer

9,990 units

22

anabolic

building up

23

catabolic

breaking down

24

metabolism

anabolic and catabolic speeds