predator prey relationship and succession

Question 1

what is the predator prey relationship

Answer 1

as prey population increases their is more food for predators so predator population increases

as predator population increases more prey is eaten so prey pop begins to fall

this means their is less food for predators so their pop decreases

Question 2

primary sucession

Answer 2

newly formed or exposed , no soil or organic matter

Question 3

secondary succession

Answer 3

land has been cleared of all plants but soil remains e.g forest fire

Question 4

what is the first stage of succession

Answer 4

a pioneer species

Question 5

what is the last stage of sucession

Answer 5

climax community

Question 6

describe the process of sucession from pioneer to climax community

Answer 6

abiotic conditions are hostile and harsh so no soil to retain water so only pionner community can survive e.g shrubs
then as pionner species die and decompose they provide nutrients in the soil and a new more complex species grows -bushes
this continues ubntil the soil is rich and deep enough for a climax community