1) Population Ecology

Question 1

Ecosystem ?

Answer 1

Made up of groups of different species of organisms that interact with each other and with the environment

Question 2

Community ?

Answer 2

A group of different species that inhabit and interact in a particular area

Question 3

Individual ?

Answer 3

A single organism capable of independent existence

Question 4

Population ?

Answer 4

A group of organisms of the same species that occupy a same area and can interbreed freely

Question 5

What affects population size ?

Answer 5

1) Natality 👶🏽
2) Immigration
3) Emigration
4) death ☠

Question 6

Environmental resistance ?

Answer 6

The total number of factors that stop a population from reproducing at its maximum rate

Question 7

Carrying capacity ?

Answer 7

Population density that the environment an support

Question 8

Population size ?

Answer 8

1) fluctuates seasonally
2) fluctuates annually
3) negative feed back

Question 9

Limiting factors ?

Answer 9

1) Density independent
2) Density dependent
3) Territoriality

Question 10

Density independent ?

Answer 10

• natural factors
• Physical factors
• Catastrophes ( floods and fires)

Question 11

Density dependent ?

Answer 11

• more crowded
• compete for resources ( Oxygen , food , light , water , space )
• found by predators
• spread disease

Question 12

Stable and unstable populations ?

Answer 12

Stable - fluctuates around carrying capacity

Unstable- far exceeds carrying capacity