Ecology and Environment-Ecosystem (NEET Biology): Questions 33 - 37 of 108

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 3146 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 700.00 or

Question number: 33

» Ecology and Environment » Ecosystem » Patterns, Components

MCQ▾

Question

Which of the following must be preserved in an ecosystem, if the system is to be maintained?

Choices

Choice (4) Response

a.

Producers and decomposers

b.

Herbivores and carnivores

c.

Producers and carnivores

d.

Carnivores and decomposers

Question number: 34

» Ecology and Environment » Ecosystem » Nutrient Cycling

MCQ▾

Question

Azotobacter and Clostridium are nitrogen fixing bacteria and found in

Choices

Choice (4) Response

a.

Free in soil

b.

Nodulated roots

c.

Leaves of certain plant

d.

Question does not provide sufficient data or is vague

Question number: 35

» Ecology and Environment » Ecosystem » Patterns, Components

MCQ▾

Question

Which of the following statements is incorrect?

Choices

Choice (4) Response

a.

Those epiphytes which use other plants for support only and not for water or food supply are examples of commensation.

b.

Lichen, an association of fungus and algae is an example of mutualism.

c.

Sea-anemone on hermit-crab is an example of protocooperation.

d.

Mutualism, protocooperation, commensalisms cannot be included under symbiosis.

Question number: 36

» Ecology and Environment » Ecosystem » Productivity and Decomposition

MCQ▾

Question

Dynamic aspect of an ecosystem is

Choices

Choice (4) Response

a.

Consumer and mineral cycles.

b.

Producer and energy flow.

c.

Energy flow and mineral cycles.

d.

Producer and mineral cycles.

Question number: 37

» Ecology and Environment » Ecosystem » Patterns, Components

MCQ▾

Question

When one organism is benefited without affecting the others it is called as

Choices

Choice (4) Response

a.

Commensalisms

b.

Saprophytism

c.

Parasitism

d.

Symbiosis

Sign In