For human population, the age pyramids generally show age distribution of

c) Of males and females | the age pyramids generally show age distribution of Of males and females

The size of the population tells us a lot about its status in the

d) Habitat | The size of the population tells us a lot about its status in the Habitat

The number of deaths in the population during a given period is referred to

b) Mortality | The number of deaths in the population during a given period is referred to Mortality

The number of birth during a given period in the population that are added to the initial density is referred to

a) Natality | It is referred as Natality

Parasites that live inside the host body at different sities are called

b) Endo parasites | Parasites that live inside the host body at different sities are called Endo parasites

Parasites that feed on the external surface of the host organism are called

a) Ecto parasites | Parasites that feed on the external surface of the host organism are called Ecto parasites

If one species is harmed whereas the other is unaffected is called

a) Commensalism | It is called as Commensalism.

The interaction where one species is benefitted and the other is neither benefitted nor harmed is called

a) Commensalism | It is called as Commensalism.

One species benefit in

d) Both (a) and (b) | Both (a) and (b)

b) Competition | Both species lose in Competition

Both the species benefit in

b) Mutualism | Both the species benefit in Mutualism

A stage of suspended development is called

a) Diapause | A stage of suspended development is called Diapause

To avoid summer-related problems – heat and desiccation by organism is called

d) Aestivation | To avoid summer-related problems – heat and desiccation by organism is called Aestivation

Winter sleep is also called as

a) Hibernation | Winter sleep is also called as Hibernation

Habitat together with functions of a species constitute its:

d) Ecological niche | Habitat together with functions of a species constitute its Ecological niche

The maximum growth rate occurs in

b) Exponential, phase | Exponential, phase

In which one of the following habitats, does the diurnal temperature of soil surface view most?

c) Desert | In desert the diurnal temperature of soil surface view most.

Science linking heredity with environment is:

c) Genecology | Science linking heredity with environment is Genecology

Submerged hydrophytes have disseced leaves for

c) Reducing effect pf water currents | For Reducing effect pf water currents

Water holding capacity is maximum in

a) Clay | Water holding capacity is maximum in Clay

Praying mantis is a good example of

a) Camouflage | Praying mantis is a good example of Camouflage

Animals have innate ability to escape from predation. Select the incorrect example:

c) Poison fangas of snakes | Poison fangas of snakes is incorrect

Organisms and Populations : Biology (Class 12th) Revision Test | MCQs for NEET

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Organisms And Populations : Biology (Class 12th) Revision Test | MCQs For NEET

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This practice test includes 25 important multiple choice questions from the chapter - Organisms And Populations (Class 12th Biology). Start Test without Login in
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Q.No.	Que title	Option 1 (a)	Option 2 (b)	Option 3 (c)	Option 4 (d)
1	For human population, the age pyramids generally show age distribution of	Only males	Only females	Of males and females	None of the above
2	The size of the population tells us a lot about its status in the	Environment	Sex-ratio	Age pyramid	Habitat
3	The number of deaths in the population during a given period is referred to	Natality	Mortality	Sex-ratio	None of the above
4	The number of birth during a given period in the population that are added to the initial density is referred to	Natality	Mortality	Sex-ratio	None of the above
5	Parasites that live inside the host body at different sities are called	Ecto parasites	Endo parasites	Brood parasitism	None of the above
6	Parasites that feed on the external surface of the host organism are called	Ecto parasites	Endo parasites	Brood parasitism	None of the above
7	If one species is harmed whereas the other is unaffected is called	Commensalism	Amensalism	Mutualism	None of the above
8	The interaction where one species is benefitted and the other is neither benefitted nor harmed is called	Commensalism	Amensalism	Mutualism	None of the above
9	One species benefit in	Parasitism	Predation	Mutualism	Both (a) and (b)
10	Both species lose in	Mutualism	Competition	Parasitism	Predation
11	Both the species benefit in	Parasitism	Mutualism	Competition	Predation
12	A stage of suspended development is called	Diapause	Suspend	Migrate	Aestivation
13	To avoid summer-related problems – heat and desiccation by organism is called	Hibernation	Suspend	Migrate	Aestivation
14	Winter sleep is also called as	Hibernation	Suspend	Migrate	Aestivation
15	The shifting of an organism temporarily from the stressful habitat to a more hospitable area and return when stressful period is over is called	Suspend	Migrate	Hibernation	Aestivation
16	Habitat together with functions of a species constitute its:	Topography	Trophic level	Boundary	Ecological niche
17	The maximum growth rate occurs in	Lag phase	Exponential, phase	Stationary phase	Senescent phase
18	In which one of the following habitats, does the diurnal temperature of soil surface view most?	Shrub land	Forest	Desert	Grassland
19	Science linking heredity with environment is:	Ecology	Ecophysiology	Genecology	Genetics
20	Submerged hydrophytes have disseced leaves for	Decreasing surface area	Increasing surface area	Reducing effect pf water currents	Increasing number of stomata
21	Water holding capacity is maximum in	Clay	Sand	Slit	Gravel
22	Animals undergo inactive stage during winters. It is called	Acclimatisation	Hibernation	Aestivation	Adapatation
23	Praying mantis is a good example of	Camouflage	Mullarian mimicry	Warning colouration	Social insect
24	Animals have innate ability to escape from predation. Select the incorrect example:	Colour change in Chameleon	Enlargement of body by swallowing air in puffer fish	Poison fangas of snakes	Melaninin in moths
25	Ozone protects biosphere from high energetic:	Infra-red rays	Ultraviolet rays	X-rays	gamma rays

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