ECOSYSTEMS - Q&A

Question 1What is the literal meaning of the Greek word 'Oikos', from which the term 'ecosystem' is derived?

Question 2Which of the following defines an ecosystem?

Question 3Why are pools and puddles generally not considered ecosystems?

Question 4What is the primary purpose of interaction between organisms in an ecosystem according to the text?

Question 5Which of these is an example of an abiotic component in an ecosystem?

Question 6What do green plants require as raw materials for photosynthesis?

Question 7Organisms that make their own food through photosynthesis are technically called:

Question 8In a pond ecosystem, what is the role of bacteria and fungi found in the mud?

Question 9What is released by plants as a 'waste' during photosynthesis that animals use for respiration?

Question 10Which category of organisms is also known as 'primary consumers'?

Question 11What does the term 'Trophic level' refer to?

Question 12If a snake is eaten by a peacock, the peacock represents which trophic level?

Question 13What is the collective term for the living components of an ecosystem?

Question 14Which of these animals is considered a scavenger (dead-material eater)?

Question 15What role does air play in seed dispersal?

Question 16Plants are the only link in a food chain capable of doing what?

Question 17What defines a 'Food Web'?

Question 18What is a major advantage of a food web over a food chain?

Question 19In a 'Pyramid of Numbers', which level typically has the millions of individuals at the base?

Question 20What is 'Biomass' in the context of food pyramids?

Question 21Which interaction involves both species benefiting?

Question 22What is a characteristic of a 'Parasitism' relationship?

Question 23Which of the following is an example of a parasite mentioned in the text?

Question 24In the context of the Gir Forest, which animal is described as most significant?

Question 25Where are Coniferous forests typically found in India?

Question 26What does 'Flora' refer to?

Question 27Which park is specifically associated with the Tiger in the text?

Question 28What is the maximum number of steps usually found in a food chain?

Question 29Which type of forest is characterized by evergreen trees, bamboos, and ferns?

Question 30What provides 'fees' to animals in the form of juicy fruits for helping in pollination?

Question 31What is the primary role of a 'Predator'?

Question 32Which intermediate hosts does the human liver fluke depend on?

Question 33What is the most significant threat to the proper functioning of our ecosystem today?

Question 34Which of these is a biotic interaction for pollination?

Question 35In a food chain consisting of: Grass -> Grasshopper -> Frog -> Snake, who is the secondary consumer?

Question 36Lichens are a symbiotic relationship between which two organisms?

Question 37What is the term for animals that eat plants directly?

Question 38What does 'Heterotroph' mean?

Question 39What happens to the number of individuals as you go up a food pyramid?

Question 40Which of the following is a 'climatic factor' of the abiotic component?

Question 41Which ecosystem is described as containing water persisting year after year with well-demarcated borders?

Question 42The sequence 'Vegetation -> Rat -> Fox' is an example of:

Question 43Which mineral is NOT specifically mentioned in the text as being contained in pond soil?

Question 44What type of food chain is 'Rice -> Man'?

Question 45In the food web, a rabbit could be food for:

Question 46What is the 'vector' for the malarial parasite?

Question 47Which forest type is found in North China, Japan, and North Eastern America?

Question 48Which organism is a primary consumer in a forest?

Question 49What is the role of earthworms in the soil?

Question 50The 'Pyramid of Biomass' shows that the total mass of flesh of deer eaten by a tiger is:

Statement 1The term 'ecosystem' is derived from the Greek word 'Oikos', which means 'house'.

Statement 2An ecosystem is a self-contained area where biotic and abiotic factors interact.

Statement 3Puddles are considered permanent ecosystems because they appear after every rain.

Statement 4The primary interaction in an ecosystem is for the purpose of obtaining food.

Statement 5Photosynthesis is the process by which plants make their own food.

Statement 6Carbon dioxide is a waste product released by plants during photosynthesis.

Statement 7Animals utilize oxygen for respiration.

Statement 8Herbivores are also known as flesh-eaters.

Statement 9Carnivores serve as food for herbivores.

Statement 10Bacteria and fungi are examples of decomposers in an ecosystem.

Statement 11Decomposers replenish nutrients back into the soil and water.

Statement 12Soil is a non-living (abiotic) component of a pond ecosystem.

Statement 13All ponds are exactly alike regardless of the region they are located in.

Statement 14A forest is characterized by a dense growth of trees and a variety of plants.

Statement 15Autotrophs are organisms that produce their own food.

Statement 16Primary consumers are the direct plant eaters in a food chain.

Statement 17Secondary consumers are typically herbivores.

Statement 18A peacock can act as a tertiary consumer in a food chain.

Statement 19Trophic levels refer to the steps of obtaining food in a chain.

Statement 20Scavengers are organisms that eat dead, putrefying flesh.

Statement 21Biotic components include sunlight, air, and water.

Statement 22Abiotic components refer to the living parts of an ecosystem.

Statement 23Heterotrophs means 'differently nourished'.

Statement 24Green plants are ranked as Producers.

Statement 25Vultures, kites, and crows are examples of detritivores.

Statement 26Sunlight is necessary for the process of photosynthesis.

Statement 27Air provides carbon dioxide to plants for respiration.

Statement 28Wind acts as an agency for the dispersal of seeds and pollen.

Statement 29Soil contains minerals such as sodium, potassium, and phosphorus.

Statement 30Flora refers to the animals naturally living in a particular area.

Statement 31Fauna refers to the naturally occurring plant life of a region.

Statement 32The Gir Forest in Gujarat is famous for its Lions.

Statement 33Jim Corbett National Park is particularly noted for its tigers.

Statement 34Rhinoceros is the most significant animal of Jaladpara Sanctuary.

Statement 35Tropical rain forests are found in the North East Himalayas.

Statement 36Coniferous forests are characterized by broad-leaved evergreen trees.

Statement 37Fir and Pine trees are common in Coniferous forests.

Statement 38A food chain is a sequence of organisms eating and being eaten.

Statement 39A food web is a network of interconnecting food chains.

Statement 40The number of steps in a food chain can rarely be six.

Statement 41Food chains are never as simple as a single straight line in nature.

Statement 42A rat can only be eaten by a fox in a forest food web.

Statement 43Plants are the only link capable of transferring inorganic chemicals into organic compounds.

Statement 44Food webs provide less stability to an ecosystem than food chains.

Statement 45A food pyramid narrows at each level upwards, ending in a point.

Statement 46In a pyramid of numbers, producers are usually at the top.

Statement 47Biomass refers to the weight-wise relationship in a food chain.

Statement 48Symbiosis is a relationship where both interacting species are benefited.

Statement 49In parasitism, both the host and the parasite benefit.

Statement 50A predator catches and kills other organisms for food.

Question 1The term 'ecosystem' is derived from the Greek word 'Oikos', which means a ______.

Question 2An ecosystem is a ______ area composed of all different organisms interacting with each other and their physical conditions.

Question 3Temporary water bodies like pools and ______ are usually not considered ecosystems.

Question 4The primary interaction between organisms in an ecosystem is for ______, described as 'eat' and 'be eaten'.

Question 5Plants that grow under water in a pond are known as ______ plants.

Question 6The process by which plants make their own food using CO2, water, and solar energy is called ______.

Question 7Oxygen given out by plants during photosynthesis is utilized by animals for ______.

Question 8Plant-eating animals are categorized as ______.

Question 9Flesh-eaters that feed on herbivores are called ______.

Question 10Organisms that feed on dead remains are called ______.

Question 11Bacteria and fungi that replenish nutrients in the soil and water are known as ______.

Question 12A forest is a large area of land with a dense growth of ______.

Question 13Organisms that produce their own food are technically called ______.

Question 14Primary consumers are animals that eat ______ directly.

Question 15Secondary consumers are typically animals that capture and eat ______.

Question 16A peacock eating a snake is an example of a ______ consumer.

Question 17Food-obtaining steps in a food chain are called ______ levels.

Question 18Living components of an ecosystem are called ______ components.

Question 19Non-living components like sunlight, air, and water are called ______ components.

Question 20All food levels next to autotrophs are covered under the category of ______.

Question 21Blowing winds serve as an agency for the ______ of seeds, fruits, and pollen.

Question 22Soil contains mineral nutrients like sodium and ______ required by plants.

Question 23The term ______ refers to the plants naturally occurring in a particular area.

Question 24The term ______ refers to the animals naturally living in a particular area.

Question 25The ______ Forest in Gujarat is famous for the Lion.

Question 26Jim Corbett National Park is located in the state of ______.

Question 27The Jaladpara Sanctuary in West Bengal is known for the ______.

Question 28Tropical rain forests are found on the ______ coast of India.

Question 29In Coniferous forests, fir and ______ trees are commonly found.

Question 30A ______ is a sequence of organisms where each eats the lower member and is eaten by the next higher member.

Question 31A ______ is a network of several interconnecting food chains.

Question 32The number of steps in a food chain rarely exceeds ______.

Question 33In a food web, a ______ can be food for an owl, a stoat, or a fox.

Question 34Plants are the only link capable of transferring ______ chemicals into organic compounds.

Question 35Food webs provide more ______ to an ecosystem than a simple food chain.

Question 36A ______ has a large base that narrows at each level upwards.

Question 37The Pyramid of ______ represents the number of individuals at each trophic level.

Question 38The total mass of living matter at a trophic level is called ______.

Question 39In a forest ecosystem, the largest mass is consumed at the ______ level.

Question 40The interaction where both species benefit is called ______.

Question 41In ______, one partner receives advantage while the host is at a loss.

Question 42A ______ catches and kills other organisms for food.

Question 43Plants pay 'fees' to animals for pollination in the form of ______.

Question 44A ______ is a symbiotic relationship between a fungus and an alga.

Question 45The malarial parasite ______ needs a mosquito as an intermediate host.

Question 46The human ______ fluke depends on a snail and a fish to complete its life cycle.

Question 47A house ______ eating a seed is considered a predator in an ecological context.

Question 48Increased ______ has led to the dwindling of natural resources.

Question 49Climate change and water shortage are results of ______ in nature.

Question 50Establishing a finer ______ between organisms and the environment is necessary to restore ecosystems.

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