ECOLOGY

Question 1

study of environment and interaction between organisms

Answer 1

ecology

Question 2

the layer of earth that supports all life forms

Answer 2

biosphere

Question 3

refers to the environment where living & nonliving things exist & interact w/ one another

Answer 3

ecosystem

Question 4

living factors

Answer 4

biotic factors

Question 5

nonliving factors e.g. sun, air, temperature

Answer 5

abiotic factors

Question 6

what are the different food dependency relationships

Answer 6

producers
consumers
herbivores
carnivores
omnivores
scavengers
decomposers

Question 7

what animals that are primary sources of energy; can make their own food (autotrophs)

Answer 7

producers

Question 8

animals that feed on other organisms in order to survive (heterotrophs)

Answer 8

consumers

Question 9

primary consumers animals/ eats plants

Answer 9

herbivores

Question 10

secondary consumers/ eat meats

Answer 10

carnivores

Question 11

tertiary consumers/ eat both meat and plants

Answer 11

omnivores

Question 12

animals that feed predominantly on dead plants and animals

Answer 12

scavengers

Question 13

hasten the decay of and decomposition of animal matter

Answer 13

decomposers

Question 14

the roles performed by living thing in the ecosystems

Answer 14

ecological niche

Question 15

place where organisms stay

Answer 15

habitat

Question 16

transfer of sun’s energy from producers to consumers as organism feed on one another

Answer 16

food chain

Question 17

overlapping food chains

Answer 17

food web

Question 18

what are the different cycles in ecosystem

Answer 18

water cycle
carbon-oxygen cycle
nitrogen cycle
phosphorus cycle

Question 19

fixed form of nitrogen

Answer 19

nitrate ions NO3-
ammonium ions NH4+
urea (NH2)2C0

Question 20

BREAKS APART NITROGEN MOLECULE

Answer 20

nitrogen fixation

Question 21

breaks apart nitrogen by lightning; dissolves in rain, forming nitrates

Answer 21

atmospheric fixation

Question 22

breaks apart nitrogen by microbes, requires ATP (adenosine triphosphate) the major energy provider of cell

Answer 22

biological fixation

Question 23

breaks apart nitrogen by products;
ammonia (NH3)
urea (NH2)2CO
ammonium nitrate (NH4NH3)

Answer 23

industrial fixation

Question 24

molecules are broken down further into ammonia (NH3)

Answer 24

decay

Question 25

most of the ammonia produced by decay is converted into nitrates

Answer 25

nitrification

Question 26

reduces nitrates and nitrates to nitrogen gas

Answer 26

denitrification

Question 27

example of phosphate that weathers from rocks and minerals

Answer 27

apatite

Question 28

phosphate is washed in water through

Answer 28

erosion and leaching by rain

Question 29

in, soil phosphate is absorbed on what

Answer 29

iron oxides aluminum hydroxides

Question 30

water plants and algae use phosphate as?

Answer 30

nutrients

Question 31

what plants use phosphate as nutrients

Answer 31

water plants and algae

Question 32

what species interaction refer to intimate or close association of two organisms of different species

Answer 32

symbiosis

Question 33

what species interaction where both organisms benefit

Answer 33

mutualism

Question 34

what species interaction where one member benefits while other is not affected (commensal-host)

Answer 34

commensalism

Question 35

what species interaction where one member benefit while the other is harmed (parasite-host)

Answer 35

parasitism

Question 36

what is the name of the host in commensalism

Answer 36

commensal

Question 37

hat is the name of the host in parasitism

Answer 37

parasite

Question 38

what do you call the external parasites

Answer 38

ectoparasite

Question 39

what do you call the internal parasite

Answer 39

endoparasite

Question 40

what species interaction refers to relationship in which one organisms attacks, kills and feeds on another

Answer 40

predation

Question 41

what do you call the prey in predation

Answer 41

predator

Question 42

what species interaction where two or more organisms compete or struggle with one another for limited food, water, etc.

Answer 42

competition

Question 43

competition between different species

Answer 43

interspecific

Question 44

competition between same species

Answer 44

intraspecific

Question 45

competition where behavioral adaptation exhibited by the member of a group

Answer 45

cooperation