Question # 1

Primary succession may start in a dry soil or rock is called.

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Hydrosere

Xerosere

Derosere

Desert

In root nodules, the organisms present are.

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Bacteria

Algae

Fungi

Cyapobacteria

The abiotic component of an ecosystem is.

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Temperature

Producer

Consumer

Decomposer

In xerosere, polytrichum and tortula represent.

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Herbaceous stage

Moss stage

Follage lichen stage

Crustose lichen stage

the basic functional unit of ecology is

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Niche

Ecosystem

Community

Population

Littoral invertebrate animals include

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Small crustaceans

Insect larvae

Snail flatworms

All a,b,and c

Lichen is a symbiotic association between a fungus and.

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Gymnosperm

Angiosperm

An alga

Pterrdophyta

Which one of the following pairs represents analogous features?

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Elephant tusks & Human incisors

Insects wings & bat wings

Mammal fore limb & bird wing

Reptilian heart & mammalism heart

Mutualism is a type of.

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Symbiosis

Parasitism

Predication

Commensalism

In 1917, term Niche was first proposed by American ornithologist named.

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Charles Eltarf

Joseph Grinnell

Lamerck

Ernst Haeckel

In grassland ecosystem annual rainfall is about 250 to

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350 mm

450 mm

650 mm

750 mm

The animal that is caught and eaten is called.

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Predator

Host

Prey

Parasite

In tropical and subtropical grassland rain reaches about

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1500 mm

2000 mm

2500 mm

3000 mm

The term niche was first proposedly joseph Grinnell an American.

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Embryologist

Ecologist

Ornithologist

Physiologist

One of the following is an example of predator prey relationship

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fungus and alga

Fox and Rabbit

Flower and Insect

Root nodule bacteria

Moderate grazing is very helpful to maintain ecosystem.

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Tundra

Grass land

Pond

Desert

Pinus wallichiana pinus roxbugil Abies pindrow picea smithiana Cederous deodara are plants of

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Coniferous alpine and boreal forests

Temperate deciduous forests

Tropical rain forests

Grassland ecosystem

Fresh water ecosystem covers less than

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7%

5%

3%

1%

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Biology FSC Part 2 Chapter 25 Online MCQ's Test MCQs With Answers

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