CHANGES IN THE ECOSYSTEM

May be caused by sudden natural disturbances or caused by human activities like mining

• succession

• ecological succession

• primary succession

• secondary succession

Series of changes in the physical environment or an ecosystem over a period of time

• secondary succession

• primary succession

• ecological succession

• secondary succession

2 kinds/types of succession

Occurs in surfaces where no soil exists

• succession

• ecological succession

• primary succession

• secondary succession

Disturbance changes an existing ecosystem without removing the soil like forest fire

• secondary succession

• primary succession

• ecological succession

• succession

Group of individuals under the same species

• population

• population density

• population growth

• immigration

Number of individuals per unit area

• immigration

• population growth

• population density

• population

Affected by birth, death rate and the entrance and exit of individuals from one population to another

• population

• population density

• population growth

• birth rate

The number of births is equivalent to thbirth ratee increase in population

• birth rate

• death rate

• birth

• death

Tags

NGSS.MS-LS1-4

The number of death is equivalent to the decrease in population

• death

• death rate

• birth rate

• birth