[MCQ]Biology MCQs For WBCS Exam||SET 23

 

 Biology MCQs For WBCS Exam

WBCS BIOLOGY MCQ Q1. 

Generally the food chain has how many trophic levels?

(a) One

(b) Two

(c) Three

(d) Three or four

Ans. (d)

WBCS BIOLOGY MCQ Q2. 

Correct path of energy flow in a system is

(a) Producers Herbivores Carnivores Decomposers

(b) Producers Carnivores Herbivores Decomposers

(c) Herbivores Producers Carnivores Decomposers

(d) Herbivores Carnivores Producers Decomposers

Ans. (a)

WBCS BIOLOGY MCQ Q3. 

When man eats fish, which feeds on zooplanktons, which have eaten small plants.

The producer in the chain is

(a) zooplankton

(b) small plants

(c) man

(d) fish

Ans. (b)

WBCS BIOLOGY MCQ Q4. 

Which is the correct sequence in the food chain in grassland?

(a) Grass wolf deer buffalo

(b) Grass insect bird snake

(c) Grass snake insect deer

(d) Bacteria grass rabbit wolf

Ans. (b)

WBCS BIOLOGY MCQ Q5. 

When a big fish eats a small fish, which eats water fleas supported by phytoplankton, the water fleas are

(a) primary consumers

(b) secondary consumers

(c) top consumer in this food chain

(d) producers

Ans. (a)

WBCS BIOLOGY MCQ Q6. 

In natural ecosystem, decomposers include

(a) only microscopic animals

(b) only bacteria and fungi

(c) the above two types organisms plus microscopic animals

(d) only the above two types of organisms

Ans. (b)

WBCS BIOLOGY MCQ Q7. 

The food chain in which microorganisms break down the energy rich compounds synthesised by producers is

(a) detritus food chain

(b) predator food chain

(c) consumer food chain

(d) parasitic food chain

Ans. (a)

WBCS BIOLOGY MCQ Q8. 

An aquatic plant with floating leaves

(a) have stomata on leaf surface

(b) have stomata on lower surface

(c) have stomata

(d) have stomata only on upper surface

Ans. (d)

WBCS BIOLOGY MCQ Q9. 

Which is the most stable ecosystem?

(a) Desert

(b) Mountain

(c) Ocean

(d) Forest

Ans. (c)

WBCS BIOLOGY MCQ Q10. 

Which of the following is a logical sequence in carbon cycle?

(a) Producer-consumer-decomposer

(b) Decomposer-consumer-producer

(c) Producer-decomposer-consumer

(d) Consumer-producer-decomposer

Ans. (a)

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⚡BIOLOGY MCQs SET 22[PREV]

⚡BIOLOGY MCQs SET 24[NEXT]

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