Forestry

Tropical

Sub-tropical

Temperate

Alpine

A community of organisms interacting with one another

That part of the earth and its atmosphere, which inhabits living organisms

The flora on land

The flora in an ocean

External effects of environment

Internal conditions within the plant itself, i.e. Embryo dormancy or seed coat dormancy

Both (a) & (b)

None of these

The pants are usually stunted in growth

Roots and stem are poorly developed

Leaves are large and tend to avoid water less lam transpiration

All of the above

Primary succession

Secondary succession

Both (a) & (b)

None of these

Petiole but not in lamina

Only mid rib of lamina

Leaf tip and leaf margin

Stems tips only

Plant ecology

Animal ecology

Ecological study of individual species

Ecological study of group of species, which is grown together

Because there is no transpiration

Because respiration ceases at such a low temperature

Because no photosynthesis takes place at such a low temperature

Because of desiccation and mechanical damage to the tissues

Are ordinary plants growing under average conditions

The occupy intermediate conditions between xerophyte and hydrophytes

Some trees and stress with deciduous leaves show marked seasonal differences

All of the above

Basis: The classification of soil structure is based on size shape and stability of soil aggregates. The soil aggregate may be of following forms

Major shape: Spheroidal, plate like, bloke like, prism like

Both (a) & (b)

None of these