Succession is
orderly process of community change till stability
gradual, convergent directional and continuous process
series of biotic communities that appear gradually in a barren area
all of these
Which of the following ecosystem has the highest gross primary productivity?
Grassland
Coral leef
Mangroves
Rain forest
Under ideal conditions, the birth rate is known
nudity
natality
mortality
population
Which of the following ecosystem has the highest primary productivity?
Pond
Lake
Desert
Forest
Rapid decline in the population, due to high mortality rate, is called
population crash
mortality rate
population explosion
population density
