CSS :: Population Biotic Community

@ : Home > Forestry > Population Biotic Community

51.

The community which begins succession in a habitat is designated as:

A.	Seral community	B.	Biotic community
C.	Pioneer community	D.	Ecosere

52.

Which of the following is not a primary coloniser?

A.	Blue-green algae	B.	Viruses
C.	Lichens	D.	Mosses

53.

A succession exhibiting changes in the communities at a place is described as:

A.	Biotic succession	B.	Physiographic succession
C.	Climatic succession	D.	Geographic succession

54.

The nature of a climax community depends upon:

A.	Water factor	B.	Temperature
C.	Soil fertility	D.	Climate

55.

During ecological succession from pioneers to climax community the biomass of vegetation:

A.	Increases, then decreases	B.	Remains constant
C.	Decreases continuously	D.	Increases continuously

56.

Which one is called amphibious plant?

A.	Polygonum	B.	Casuarina
C.	Wolffia	D.	None of these

57.

The last stage of plant succession is:

A.	Ecotone	B.	Climax stage
C.	Seral community	D.	Ecotype

58.

In an aqueous environment, the microscopic animals are collectively called:

A.	Herbivores	B.	Carnivores
C.	Planktons	D.	Fauna and flora

59.

The primary succession refers to the development of communities on a:

A.	Freshly cleared crop field	B.	Forest clearing after devastating fire
C.	Pons, freshly filled water after a dry phase	D.	Newly-exposed habitat with no record of earlier vegetation

60.

A place was rocky and barren but now there is a green forest; the sequence of origin is:

A.	Lichen, mos, herbs, shrubs	B.	Moss, lichen, herbs, shrubs
C.	Lichen, moss, shrubs, herbs	D.	Shrubs, herbs, moss, lichen