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Chapter 4: Ecology Revision Questions
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1Ecology:
- Ais the place where a plant or animal lives
- Bis the study of the interactions between organisms and between organisms and their environment
- Cis all the members of the same species living in the habitat
- Dis that part of the planet in which living organisms can be found
2An ecosystem:
- Ais the study of the interactions between organisms and between organisms and their environment
- Bis that part of the planet in which living organisms can be found
- Cis the place where a plant or animal lives
- Dis a group of clearly distinguished organisms that interact with their environment as a unit
3The biosphere:
- Ais that part of the planet in which living organisms can be found
- Bis the place where a plant or animal lives
- Cis all the members of the same species living in the habitat
- Dis the study of the interactions between organisms and between organisms and their environment
4A habitat:
- Ais the study of the interactions between organisms and between organisms and their environment
- Bis all the different populations of species living in the habitat
- Cis the place where a plant or animal lives
- Dis that part of the planet in which living organisms can be found
5A population:
- Ais the study of the interactions between organisms and between organisms and their environment
- Bis all the members of the same species living in the habitat
- Cis all the different populations of species living in the habitat
- Dis a group of clearly distinguished organisms that interact with their environment as a unit
6A community:
- Ais all the different populations of species living in the habitat
- Bis all the members of the same species living in the habitat
- Cis the study of the interactions between organisms and between organisms and their environment
- Dis that part of the planet in which living organisms can be found
7What type of factors are abiotic factors?
- ALiving
- BNon-living
- CDisease-causing
- DHealthy
8What type of factors are biotic factors?
- ALiving
- BNon-living
- CDisease-causing
- DHealthy
9Edaphic factors have to do with the:
- AWater
- BWeather
- CAir
- DSoil
10What is a 'producer'?
- AAn organism that gets its food from other living organisms
- BAn organism that makes its own food
- CAn organism that does not need food
- DAn organism that can both make its own food and get food from other living organisms
11Consumers are:
- Aorganisms that do not require food
- Borganisms that make their own food
- Corganisms that kill other organisms
- Dorganisms that obtain their food from other organisms
12A grazing food chain is a:
- Asequence of organisms in which each one is eaten by the next member in the chain
- Bsequence of organisms that live in the same habitat
- Csequence of organisms in which the last organism eats all the others
- Dsequence of organisms in which the first organism eats the others
13[blank_start]Grass[blank_end] →Rabbit → Fox
- AGrass
- BAsh tree
- CHorse Chestnut tree
- DBamboo
14A pyramid of numbers
- Arepresents the number of organisms in each food chain
- Brepresents the number of organisms at each stage in a food chain
- Crepresents the number of stages in a food chain
- Drepresents the number of food chains in an ecosystem
15A food web
- Aconsists of a population of organisms living in a habitat
- Bconsists of a number of different species living in the same habitat
- Cconsists of two or more interlinked food chains
- Dconsists of two or more separate food chains
16A niche is
- Athe functional role an organism plays in a particular habitat
- Bthe way an organism feeds in its habitat
- Can organism's food supply
- Dan organism's offspring
17In the carbon cycle elemental carbon in carbon dioxide enters living organisms through the process of:
- ADigestion
- BRespiration
- CProtein synthesis
- DPhotosynthesis
18In the carbon cycle, elemental carbon in living organisms enters the atmosphere through the process of:
- ARespiration
- BProtein synthesis
- CPhotosynthesis
- DDigestion
19Burning of fossil fuels is a major contributor to the carbon dioxide in the atmosphere.
- ATrue
- BFalse
20In the nitrogen cycle, elemental nitrogen enters living organisms mostly via:
- APlants
- BFungi
- CBacteria
- DAnimals
21In the nitrogen cycle, nitrogen fixation is:
- Athe conversion of nitrates to ammonia
- Bthe conversion of ammonia to nitrates
- Cthe conversion of nitrogen gas to nitrates
- Dthe conversion of nitrates to nitrogen gas
22In the nitrogen cycle, nitrification is:
- Athe conversion of ammonia to nitrates
- Bthe conversion of nitrates to ammonia
- Cthe conversion of nitrogen gas to nitrates
- Dthe conversion of nitrates to nitrogen gas
23Denitrification is:
- Athe conversion of nitrates to nitrogen gas
- Bthe conversion of nitrogen gas to nitrates
- Cthe conversion of nitrates to ammonia
- Dthe conversion of ammonia to nitrates
24Assimilation is an important process in both the carbon and nitrogen cycles. Which of the following statements correctly describes assimilation?
- AConversion of plant biomolecules into animal biomolecules
- BConversion of animal biomolecules into plant biomolecules
- CConversion of animal remains into humus
- DConversion of plant remains into fossil fuels
25The carbon and nitrogen cycles are important parts of 'nutrient recycling'. Which of the following statements correctly describes nutrient recycling?
- ANutrients are passed from one organism to the next
- BReuse of elements present in living organisms
- CNutrients are passed back and forth between two organisms
- DReuse of food by a particular organism
26Pollution is
- Athe reuse of elements in living organisms
- Bany harmful addition to the environment
- Cthe getting rid of waste products of metabolism
- Dthe sum of all the chemical reactions in an organism
27Conservation is:
- Athe wise management of our existing natural resources
- Bany harmful addition to the environment
- Cthe reabsorption of water in an organism
- Dthe management of a living organsism
28Which of the following is NOT a problem associated with waste disposal?
- ALandfill sites are unsightly
- BPollution
- CDisease-causing organisms
- DCan be used to produce energy
29Which of the following is NOT one of the 'three Rs' associated with waste minimisation?
- AReduce
- BRecycle
- CRestriction
- DReuse
30Which of the following is NOT an ecological relationship?
- ASymbiosis
- BPredation
- CCompetition
- DParasitism
- EPollution
31Competition is
- Athe struggle for a resource
- Bthe catching, killing, and eating of another organism
- Cwhen one organism lives in or on another organism, called the host, and the host is harmed
- Dwhen two organisms of different species live in close association and at least one of them benefits
32Predation is:
- Athe struggle for a resource
- Bthe catching, killing and eating of another organism
- Cwhere one organism lives in or on another organism, called the host, and the host is harmed
- Dwhere two organisms of different species live in close association and at least one of them benefits
33Symbiosis is:
- Awhere two organisms of different species live in close association and at least one of them benefits
- Bwhere one organism lives in or on another organism, called the host, and the host is harmed
- Cthe catching, killing and eating of another organism
- Dthe struggle for a resource
34Parasitism is:
- Awhere two organisms of different species live in close association and at least one of them benefits
- Bwhere one organisms lives in or on another organism, called the host, and the host is harmed
- Cthe catching, killing and eating of another organism
- Dthe struggle for a resource
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- Ecology revision questions
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- John Loughlin
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- English
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