Forestry

A functional unit of biotic and abiotic components which have an energy source

Either a part of land surface, a body of fresh water or the open oceans

A functional unit consisting of sunlight, air water and minerals

A system consisting of an energy source, producers and consumers

160.5

167.75

170.6

175.8

Tiger and wild beer

Snake and earthworm

Deer and honey bee

Crow and cow

Savanna – Acacia trees

Prairie – Epiphytes

Coniferous forest – Evergreen trees

Thndra – Permafrost

Sheep and grazers

Camels and goats are browsers

Both (a) & (b)

None of these

Water factor

Sand

Mud

Desert

Food chain

Food web

Symbiosis

Phagocytosis

89%

93%

97%

86%

In selection forest, the stem numbers fell off from lower to higher dia classes in a geometric progression

So there was a constant ratio between numbers in successive dia classes from lowest to the highest

Both (a) & (b)

None of these

Genetic drift

Ecological succession trend

A food pyramid

A phylogenetic trend