Ecology Test

Question 1

Ecosystem

Answer 1

biotic & abiotic

Question 2

Community

Answer 2

biotic

Question 3

Population

Answer 3

1 species-same place

Question 4

Organism

Answer 4

individual

Question 5

Limiting factors

Answer 5

controls population size

Question 6

limiting factors examples

Answer 6

resources, predators, diseases

Question 7

range of tolerance

Answer 7

how much change can an organism take

Question 8

wide range of tolerance

Answer 8

20-60

Question 9

narrow range of tolerance

Answer 9

60-80

Question 10

habitat

Answer 10

where an organism lives

Question 11

niche

Answer 11

how the organism survives

Question 12

symbols of parasitism

Answer 12

+,-

Question 13

symbols of mutualism

Answer 13

+,+

Question 14

symbols of commensalism

Answer 14

+,o

Question 15

producer

Answer 15

autotroph, (plants)

Question 16

consumer

Answer 16

heterotroph (animals, fungi)

Question 17

food chain ex

Answer 17

grass –> rabbit –> snake –> hawk

Question 18

where is the greatest amount of energy in a trophic level

Answer 18

bottom

Question 19

how much energy is passed on through levels

Answer 19

10%

Question 20

biomass

Answer 20

of organisms

Question 21

decomposer

Answer 21

breaks down dead organisms and returns nutrients to soil & atmosphere

Question 22

ex of decomposers

Answer 22

bacteria & fungi

Question 23

Logistic population growth

Answer 23

limiting factors, once reaches carrying capacity, it stays put

Question 24

Exponential growth

Answer 24

no limiting factors, continues growing

Question 25

Rapid human population growth

Answer 25

large numbers at bottom, small at top

Question 26

Stable human population growth

Answer 26

Medium numbers on bottom, close to same on top

Question 27

biodiversity

Answer 27

number of different species in an area

Question 28

what are the 4 threats to biodiversity

Answer 28

habitat loss, habitat fragmentation, habitat degradation, and invasive/non-native species

Question 29

habitat loss

Answer 29

habitat destruction

Question 30

habitat fragmentation

Answer 30

cutting land in half, smaller area to live on

Question 31

habitat degradation

Answer 31

pollution

Question 32

invasive/non-native species

Answer 32

exponential growth, no limiting factors, uses up resources

Question 33

3 Solutions to threats of biodiversity

Answer 33

habitat preservation
captivity
reintroduction

Question 34

habitat preservation

Answer 34

keeping an area

Question 35

captivity

Answer 35

take care of

Question 36

reintroduction

Answer 36

put back

Question 37

deforestation

Answer 37

rainforest destruction (human impact)

Question 38

What is the only process that removes CO2 from the air

Answer 38

Photosynthesis

Question 39

What is transpiration

Answer 39

H2O through roots and evaporated out leaves in plant

Question 40

What is the water cycles 3 parts

Answer 40

evaporation, condensation, precipitation

Question 41

what does the ozone layer block

Answer 41

UV rays from the sun

Question 42

what is causing a hole in the ozone layer

Answer 42

chlorofluorocarbons (CFCs) ex. refrigerants, aerosol

Question 43

Burning fossil fuels causes what 2 things

Answer 43

global warming and acid rain

Question 44

global warming

Answer 44

rise in CO2 and temperature, climate change

Question 45

acid rain

Answer 45

nitric and sulfuric acids, smog, mercury, causes changes of pH in aquatic ecosystems