Medical Quiz

Environment Quiz


———-is the obligatory interaction.

A. Mutualism

B. Commensalism

C. Ammensalism

D. Cooperation

What are considered as bioindicators of air pollution

A. Mycorrhizae

B. Lichens

C. Rhizosphere

D. None of the above

Neutralism occurs

A. When populations are in their favourable environment

B. In habitats with high population density

C. When organisms are in their growing stage.

D. Between microbial populations in a community with extremely different metabolic characteristics.

Skin microflora is an example of which relationship

A. parasitism

B. commensalism

C. syntrophism

D. amensalism

Phosphates enzyme play a major role in ______ of organic phosphates in soil:

A. Mineralization

B. Adsorption

C. Immobilization

D. None of these

Dehydrogenase is an endoenzyme



C. Don’t know

Which energy source pollutes the environment?

A. Solar

B. Wind

C. Hydroelectric

D. Coal

Antagonistic substances released by microorganisms in the rhizosphere may allow plants to enter ………………. relationship with other plants.

A. commensal

B. symbiotic

C. amensal

D. competition

The presence of autotrophic mycorrhiza enhances the uptake of nutrients in general, but particularly of:

A. Iron

B. Molybdenum

C. Phosphorus

D. Nitrogen

Taj Mahal is threatened due to

A. Sulphur dioxide

B. Carbon dioxide

C. Carbon monoxide

D. Water vapour

The green plants are called

A. Producers

B. Consumers

C. Decomposers

D. None of these

Rhizospheres affect microbial population and nutrient availability by:

A. Exerting physical pressure

B. Increasing pore space

C. Secreting nutritive metabolites and organic solvents

D. Changing soil structure

The two components of a ecosystem are

A. Plants and animals

B. Biotic and Abiotic

C. Plants and light

D. Weeds and micro-organisms

Deforestation causes

A. More floods

B. Reduced rainfall

C. Soil erosion

D. All the above

Lichen is the symbiotic association of—————-

A. Fungi & Bacteria.

B. Fungi & Algae

C. Algae & Bacteria

D. Protozoa & Virus

The fungal mycelium in Mycorrhizae penetrates the root cells by means of projections called———

A. Hausteria

B. Arbuscules

C. Absorbing organ

D. None

Bioindicators include

A. Soil animals

B. Soil plants

C. Soil enzymes

D. None of the above

E. All of the above

Which of the following relationships identifies a situation in which two species share a requirement for a limited resource thus reducing the fitness of one or both species? A

A. Parasitism

B. Competition

C. Decomposition

D. Mutualism

The ultimate source of energy in an ecosystem is the

A. producers

B. Consumers

C. Sun

D. Decomposers

Which of these activities is eco-friendly?

A. Cars for transportation

B. Polybags for shopping

C. Windmills for generating power

D. Dyes for colouring clothes

In Lichen, the fungle partener is called as————- a) . b) . c) . c) .

A. Phacobiont

B. Mycobiont

C. Photobiont

D. All of above

———is the type of endosymbiosis.

A. Cooperation

B. Commensalisms

C. Mutualism

D. Predation

Which of these play a very important role in causing rain fall

A. Vehicles

B. Animals

C. Factories

D. Plants

What is the theme of environment day 2020

A. Beat air pollution

B. Beat plastic pollution

C. Celebrate Biodiversity

D. Connecting people to nature

Biofertilizer is a:

A. Mixture of organic matter and microorganism

B. Culture having the desired strain of microorganisms

C. Mixture of inorganic fertilizer and microorganism

D. Decomposed compost enriched with mineral solubilising bacteria


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