Q1. For human population, the age pyramids generally show age distribution of
A) Only males
B) Only females
C) Of males and females
D) None of the above
Answer: (C) Of males and females
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
A) Environment
B) Sex-ratio
C) Age pyramid
D) Habitat
Answer: (D) Habitat
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
A) Natality
B) Mortality
C) Sex-ratio
D) None of the above
Answer: (B) Mortality
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
A) Natality
B) Mortality
C) Sex-ratio
D) None of the above
Answer: (A) Natality
It is referred as Natality
Q5. Parasites that live inside the host body at different sities are called
A) Ecto parasites
B) Endo parasites
C) Brood parasitism
D) None of the above
Answer: (B) Endo parasites
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
A) Ecto parasites
B) Endo parasites
C) Brood parasitism
D) None of the above
Answer: (A) Ecto parasites
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
A) Commensalism
B) Amensalism
C) Mutualism
D) None of the above
Answer: (A) Commensalism
It is called as Commensalism.
Q8. The interaction where one species is benefitted and the other is neither benefitted nor harmed is called
A) Commensalism
B) Amensalism
C) Mutualism
D) None of the above
Answer: (A) Commensalism
It is called as Commensalism.
Q9. One species benefit in
A) Parasitism
B) Predation
C) Mutualism
D) Both (a) and (b)
Answer: (D) Both (a) and (b)
Both (a) and (b)
Q10. Both species lose in
A) Mutualism
B) Competition
C) Parasitism
D) Predation
Answer: (B) Competition
Both species lose in Competition
Q11. Both the species benefit in
A) Parasitism
B) Mutualism
C) Competition
D) Predation
Answer: (B) Mutualism
Both the species benefit in Mutualism
Q12. A stage of suspended development is called
A) Diapause
B) Suspend
C) Migrate
D) Aestivation
Answer: (A) Diapause
A stage of suspended development is called Diapause
Q13. To avoid summer-related problems – heat and desiccation by organism is called
A) Hibernation
B) Suspend
C) Migrate
D) Aestivation
Answer: (D) Aestivation
To avoid summer-related problems – heat and desiccation by organism is called Aestivation
Q14. Winter sleep is also called as
A) Hibernation
B) Suspend
C) Migrate
D) Aestivation
Answer: (A) Hibernation
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
A) Suspend
B) Migrate
C) Hibernation
D) Aestivation
Answer: (B) Migrate
Q16. Habitat together with functions of a species constitute its:
A) Topography
B) Trophic level
C) Boundary
D) Ecological niche
Answer: (D) Ecological niche
Habitat together with functions of a species constitute its Ecological niche
Q17. The maximum growth rate occurs in
A) Lag phase
B) Exponential, phase
C) Stationary phase
D) Senescent phase
Answer: (B) Exponential, phase
Exponential, phase
Q18. In which one of the following habitats, does the diurnal temperature of soil surface view most?
A) Shrub land
B) Forest
C) Desert
D) Grassland
Answer: (C) Desert
In desert the diurnal temperature of soil surface view most.
Q19. Science linking heredity with environment is:
A) Ecology
B) Ecophysiology
C) Genecology
D) Genetics
Answer: (C) Genecology
Science linking heredity with environment is Genecology
Q20. Submerged hydrophytes have disseced leaves for
A) Decreasing surface area
B) Increasing surface area
C) Reducing effect pf water currents
D) Increasing number of stomata
Answer: (C) Reducing effect pf water currents
For Reducing effect pf water currents
Q21. Water holding capacity is maximum in
A) Clay
B) Sand
C) Slit
D) Gravel
Answer: (A) Clay
Water holding capacity is maximum in Clay
Q22. Animals undergo inactive stage during winters. It is called
A) Acclimatisation
B) Hibernation
C) Aestivation
D) Adapatation
Answer: (B) Hibernation
Q23. Praying mantis is a good example of
A) Camouflage
B) Mullarian mimicry
C) Warning colouration
D) Social insect
Answer: (A) Camouflage
Praying mantis is a good example of Camouflage
Q24. Animals have innate ability to escape from predation. Select the incorrect example:
A) Colour change in Chameleon
B) Enlargement of body by swallowing air in puffer fish
C) Poison fangas of snakes
D) Melaninin in moths
Answer: (C) Poison fangas of snakes
Poison fangas of snakes is incorrect
Q25. Ozone protects biosphere from high energetic:
A) Infra-red rays
B) Ultraviolet rays
C) X-rays
D) gamma rays
Answer: (B) Ultraviolet rays
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