key terms

Question 1

biodiversity is

Answer 1

the variety of species present in an ecosystem

Question 2

an ecosystem consists of

Answer 2

all the organisms(community) living in a particular place(habitat) and the non-living components

Question 3

a population is

Answer 3

total no. of organisms of the same species in a particular habitat

Question 4

interactions of species with other species in a community include

Answer 4

competition and predation

Question 5

producers are

Answer 5

green plants that produce their own food by photosynthesis

Question 6

consumers are

Answer 6

organisms that obtain energy by eating other organisms

Question 7

herbivores eat

Answer 7

plants

Question 8

carnivores eat

Answer 8

animals only

Question 9

omnivores eat

Answer 9

animals and plants

Question 10

predators are

Answer 10

organisms that hunt and kill prey organisms

Question 11

prey are

Answer 11

organisms that are hunted by predator organisms

Question 12

a niche is

Answer 12

the role an organism plays within its community

Question 13

a niche is related to

Answer 13

the resources an organism requires in its ecosystem, eg. light/nutrient availability and its interactions with other organisms in the community

Question 14

a niche involves

Answer 14

competition and predation and the abiotic factors it can tolerate

Question 15

a food chain diagram represents

Answer 15

how energy flows from 1 organism to another during feeding

Question 16

food chains are linked together as

Answer 16

food webs

Question 17

competition in ecosystems occur when

Answer 17

resources are in short supply and organisms struggle for the same resources

Question 18

interspecific competition occurs among

Answer 18

individuals of different species for 1 or a few resources they require

Question 19

intraspecific competition occurs among

Answer 19

individuals of the same species for all resources they require

Question 20

………… competition is more intense than …………competition

Answer 20

intraspecific competition is more intense than interspecific competition

Question 21

a species is

Answer 21

a group of organisms that can interbreed to produce fertile offspring

Question 22

a habitat is

Answer 22

the place an organism lives