ecosystem 3.1

Question 1

species

Answer 1

an organism which can reproduce to produce fertile offspring

Question 2

inter-species

Answer 2

two organisms from different species can breed and produce sterile/infertile offspring

Question 3

population

Answer 3

all the organisms of one species in a particular area (habitat)

Question 4

ecosystem

Answer 4

all the organisms (community) living in a particular area (habitat) and non-living components with the organisms interact

Question 5

habitat

Answer 5

a place an organism lives

Question 6

community

Answer 6

all the living organisms (populations) who live in an ecosystem

Question 7

biodiversity

Answer 7

the variety of all living things

Question 8

carnivore

Answer 8

an animal which only eats other animals

Question 9

omnivore

Answer 9

an animal which eats both plants and animals

Question 10

herbivore

Answer 10

an animal which eats only plants

Question 11

what do the arrows in a food chain show

Answer 11

the transfer of energy from one organism to the next

Question 12

producer

Answer 12

organisms which can make their own food using sunlight

Question 13

what do all food chains start with

Answer 13

a producer

Question 14

consumer

Answer 14

an organism which cannot make its own food and therefore feeds off another organism

Question 15

how is energy lost in the food chain

Answer 15

heat, movement or undigested material

Question 16

niche

Answer 16

an organisms ecological niche is the role it plays within a community

Question 17

when does competition occur in a community

Answer 17

whenever two or more members of the community need a particular resource that is in short supply

Question 18

types of competition

Answer 18

inter specific and intra specific

Question 19

inter specific

Answer 19

occurs amongst individuals of different species competing for some of the resources they require

Question 20

intra specific

Answer 20

occurs amongst individuals of the same species competing for all of the resources they require

Question 21

which type of competition is more intense

Answer 21

intra specific