TOPIC 10

Question 2

Define Community

Answer 2

population of all different species of organisms living in a habitat at one time

Question 3

define Habitat

Answer 3

place where orgnism lives

Question 4

Define Ecosystem

Answer 4

life supporting environment including all living organisms which interact together

Question 5

Define biosphere

Answer 5

all the areas of the surface of the earth where living organisms survive

Question 6

the major ecosystems of the world are called ____________ .

Answer 6

the major ecosystems of the world are called Biomes

Question 7

Define succession

Answer 7

process by which communities of organisms colonising an area change overtime

Question 8

Define Climax Community

Answer 8

Self sustaining community with relatively constant biodiversity and species range. It is the most productive group of organisms that a given environment can support long term.

Question 9

Term for a climax community that is at least part the result of human intervention.

Answer 9

Plagioclimax

Question 10

What is a climatic climax community

Answer 10

the only climax community possible in a given climate

Question 11

difference between secondary and primary succession

Answer 11

in secondary the soil is already existing with its vegetation

Question 12

Term describing the loss of minerals from the soil as water passes through rapidly

Answer 12

Leaching