This practice test includes 25 important multiple choice questions from the chapter – Organisms And Populations (Class 12th Biology).
Organisms and Populations : Biology (Class 12th) Revision Test | MCQs for NEET
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Total: 25 Questions
Questions
Q1.
For human population, the age pyramids generally show age distribution of
ЁЯУШ Explanation:
the age pyramids generally show age distribution of Of males and females
Q2.
The size of the population tells us a lot about its status in the
ЁЯУШ Explanation:
The size of the population tells us a lot about its status in the Habitat
Q3.
The number of deaths in the population during a given period is referred to
ЁЯУШ Explanation:
The number of deaths in the population during a given period is referred to Mortality
Q4.
The number of birth during a given period in the population that are added to the initial density is referred to
ЁЯУШ Explanation:
It is referred as Natality
Q5.
Parasites that live inside the host body at different sities are called
ЁЯУШ Explanation:
Parasites that live inside the host body at different sities are called Endo parasites
Q6.
Parasites that feed on the external surface of the host organism are called
ЁЯУШ Explanation:
Parasites that feed on the external surface of the host organism are called Ecto parasites
Q7.
If one species is harmed whereas the other is unaffected is called
ЁЯУШ Explanation:
It is called as Commensalism.
Q8.
The interaction where one species is benefitted and the other is neither benefitted nor harmed is called
ЁЯУШ Explanation:
It is called as Commensalism.
Q9.
One species benefit in
ЁЯУШ Explanation:
Both (a) and (b)
Q10.
Both species lose in
ЁЯУШ Explanation:
Both species lose in Competition
Q11.
Both the species benefit in
ЁЯУШ Explanation:
Both the species benefit in Mutualism
Q12.
A stage of suspended development is called
ЁЯУШ Explanation:
A stage of suspended development is called Diapause
Q13.
To avoid summer-related problems тАУ heat and desiccation by organism is called
ЁЯУШ Explanation:
To avoid summer-related problems тАУ heat and desiccation by organism is called Aestivation
Q14.
Winter sleep is also called as
ЁЯУШ Explanation:
Winter sleep is also called as Hibernation
Q15.
The shifting of an organism temporarily from the stressful habitat to a more hospitable area and return when stressful period is over is called
Q16.
Habitat together with functions of a species constitute its:
ЁЯУШ Explanation:
Habitat together with functions of a species constitute its Ecological niche
Q17.
The maximum growth rate occurs in
ЁЯУШ Explanation:
Exponential, phase
Q18.
In which one of the following habitats, does the diurnal temperature of soil surface view most?
ЁЯУШ Explanation:
In desert the diurnal temperature of soil surface view most.
Q19.
Science linking heredity with environment is:
ЁЯУШ Explanation:
Science linking heredity with environment is Genecology
Q20.
Submerged hydrophytes have disseced leaves for
ЁЯУШ Explanation:
For Reducing effect pf water currents
Q21.
Water holding capacity is maximum in
ЁЯУШ Explanation:
Water holding capacity is maximum in Clay
Q22.
Animals undergo inactive stage during winters. It is called
Q23.
Praying mantis is a good example of
ЁЯУШ Explanation:
Praying mantis is a good example of Camouflage
Q24.
Animals have innate ability to escape from predation. Select the incorrect example:
ЁЯУШ Explanation:
Poison fangas of snakes is incorrect
Q25.
Ozone protects biosphere from high energetic:
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