Environmental Science and Ecology - Mock Test 62

Question 611

Which group of three living organisms, given below is a link in food chain: Green plants .... Hawk?

A) Grasshopper, frog, snake B) Grasshopper, rat, snake C) Millipedes, centipedes, sparrow D) Earthworm, hen, rat

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Question 612

If all the green plants were to disappear from the earth?

A) Only the herbivores will die B) All the animal will die C) Only the carnivores will die D) It will not matter to anyone because chemosynthetic bacteria will produce food for all

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Question 613

If organisms are arranged according to predator-prey relationship one always finds more of prey species then of predator. This is called a?

A) Food web B) Pyramid of numbers C) Succession D) Predator-prey relationship

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Question 614

A crocodile had just eaten a lamb when a hawk saw the crocodile attacked it, and consumed it. The hawk is in ecological terms?

A) A producer B) A primary consumer C) A secondary consumer D) A tertiary consumer

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Question 615

A plant, being eaten by a herbivore which in turn is eaten by a carnivore, makes a?

A) Food chain B) Web of food C) Biomass D) Interdependence

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Question 616

The bacteria which attack the dead animals are?

A) First link of the food chain and are known as primary producers B) Second link of the food chain and are herbivouous C) Third link of the food chain and are tertiary consumers D) The end of the food chain and are decomposers

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Question 617

When a big fish eats a small fish, which easts water-fleas supported by phytoplankton, the water leas are?

A) Primary consumers B) Producers C) Secondary consumers D) Top consumers in this food chain

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Question 618

In an ecosystem, the population of?

A) Primary producers is larger than that of primary consumers B) Secondary consumers is the largest because they are the most powerful C) Primary consumers outnumber primary producers D) Primary consumers is the least dependant upon primary producers

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Question 619

The number of producers and consumers in an ecosystem is mutually controlled by a?

A) Productivity control B) Food chain mechanism C) Feed back mechanism D) Any of these

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Question 620

The zooplanktonic forms are?

A) Primay consumers B) Secondary consumers C) Carnivores D) Primary producers

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