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Ecology is the study of relationships between living organisms and the environment. The term ecology was coined by Ernest Haekel who combined two words oikos( meaning house) and logos( meaning study of) which represents the relationships between organism and environment. 


Ecology Sample Questions:


Question 1: According to the nature of interaction between the soil particles and water molecules, which soil water is utilized by the plants?


1) Gravitational water

2) Hygroscopic water

3) Capillary water

4) Chemically bound water


Answer: 3)

Explanation: The capillary water is present in thin capillaries in the soil and it is mainly available



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Question 2: Which of the following is the property of chilling resistant plants?


1) High proportion of saturated fatty acids in the cell membrane

2) High proportion of unsaturated fatty acids in the cell membrane

3) Dehydration and Supercooling

4) All of the above

Answer: Option (2,3)

Explanation: The chilling and cold stress mainly damage the membrane properties so chilling



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Question 3: Which of the following is an example of succulents or drought enduring plants?


1) Calotropis procera
2) Opuntia
3) Argemone mexicana
4) Casuarina equisetifolia

Answer: 2)

Explanation: The succulent plants live in xerophytic conditions and to fight with these



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Question 4: The individuals who belong to the same genetic stock but differ in the vegetative characteristics, such as shape, size and leaves are called?


1) Ecotype
2) Ecological amplitude
3) Guilds
4) Ecads

Answer: 4)

Explanation: The Ecads are also called ecophenes are the individuals who only differ



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Question 5: Which one of the following about transfer efficiency is true?


1) Consumption efficiency of the herbivores is very low
2) Herbivores assimilation efficiency is higher in aquatic ecosystems than in terrestrial ecosystems
3) Herbivores tend to have production efficiency,but low assimilation efficiency
4) All of the above


Answer: 4)

Explanation: Consumption efficiency of herbivores is low because there is a difficulty



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Question 6: Why is the pyramid of energy always upright?


1) It is because the lower level has more consumption efficiency as compared to higher
2) It is because the energy is always gained at successive trophic levels
3) Because the top carnivores utilise more energy
4) It is because some energy is always lost as we go from one trophic level to another trophic level

Answer: 4)

Explanation: The pyramid of energy is always upright because a given trophic level has



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Question 7: Which organisms show type -3 survivorship curves?


1) Mammals
2) Mountain sheep
3) Oysters and shellfish
4) Birds


Answer: 3)

Explanation: In type-3 survivorship curve , the mortality rate is high during the initial stages



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Question 8: What is the shape of a stable population?

1) Bell shaped
2) Pyramid shaped
3) Urn- shaped
4) Inverted shape


Answer: 1)

Explanation: The population is called a stable population when the pre-reproductive



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Question 9: Which of the following is the characteristic of k-strategies/ species?


1) K- species have smaller sizes
2) Show early reproduction
3) Algae, bacteria, rodents are examples
4) Large body size and iteroparous

Answer: 4)

Explanation: The k-species are the stable species and they undergo delayed reproduction,



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Question 10: Describe an association in which two species are mutually benefited and live in close association?


1) Commensalism
2) Mutualism
3) Parasitism
4) Competition


Answer: 2)

Explanation: Mutualism is the relationship between two different species that are mutually beneficial



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