3.1 ecosystems Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

what is a species

A

a group of similar organisms that are able to interbreed and produce fertile offspring

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

biodiversity

A

the total number of different species living in a particular area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

population

A

the number of one species present in a area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

producer

A

an organism (green plant) that carries photosynthesis to make its own food using light energy from sun

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

consumer

A

an organism that has to eat other organism in order to gain energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

herbivore

A

an consumer that only eats plants/producers to gain energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

carnivore

A

a consumer that eats animals to gain energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

omnivore

A

a consumer that eats plant and animals to gain energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

predator

A

an animal hunts another animal for food

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

prey

A

an animal that gets hunted for food

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

food chain

A

simple flow diagram that shows energy transfer between series of organisms that depend on the next as a source of food starting with producer and ending with top predator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

food web

A

a complex diagram showing energy transfers between organisms in a habitat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

ecosystem

A

made up of all the organisms living in a particular habitat and all non living components with which the organisms interact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

main parts of an ecosystem

A

all organisms living in a particular habits eg community
non living components that which the organisms interact eg soil type

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

community

A

all living organisms present in a particular habitat area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

habitat

A

a place where organisms lives

17
Q

food chain represents

A

direction of energy transfer flow between organisms in food chain food food web the arrow always points in direction of organisms that is gaining energy

18
Q

niche

A

the role an organism plays within its community

19
Q

niche of an organism

A

the resources that it requires in its ecosystem eeg light
it’s interaction with other organisms in community eg competition
the conditions it can tolerate eg temp

20
Q

interdependence of organisms within food web

A

every organism within food web is linked to every other organism either directly or indirectly a change to any one population will always have knock on consequences for every other organism within food web

21
Q

competition

A

competition is a battle between organisms requiring the same recourses
competition occurs when recourses are in short supply

22
Q

two main types of conp

A

intra specefic - this is organism of the same species for all the recourses they require

inter specefic - this is different organisms belowong to two different species for one or a few of the same recourses they require

23
Q

how is intraspecefic more intense than inter

A

more intense as it is a competition between members of same species who have exactly same requirements for all recourses that they need