Questão 1
Questão
Ecology is the study of..?
Responda
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Living things in their environment.
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Organisms in their unnatural habitats
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Ecosystems
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Plants and the competition they face
Questão 2
Questão
An Ecosystem is..?
Responda
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A community of organisms and their surroundings
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The environment in which organisms live and with which they interact
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Community of predators only
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Acommunity of plants and prokaryotes
Questão 3
Questão
The organisms (community) of an ecosystem are called the ____ component & the physical environment is known as the ____ component.
Responda
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Biotic | Abiotic
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Abiotic | Biotic
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Abiotic | Antibiotic
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Biotic | Antibiotic
Questão 4
Responda
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The locality in which an organism occurs.
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Where the organism is normally found
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Where the organism lives
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Where the organism has a nest
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Where the organism has died
Questão 5
Questão
The population is..?
Responda
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All the living things of the same species in a habitat at any one time
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All the living things in a habitat at any one time
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All the different species in an ecosystem atr any one time
Questão 6
Questão
A community is..?
Responda
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All the living things in a habitat or ecosystem
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The total of all the populations of an ecosystem
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All the living things of the same species in a habitat at any one time
Questão 7
Questão
Traits of organisms of the same species are..?
Responda
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A group of individuals with common ancestry
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Capable of interbreeding to produce fertile offspring
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Incapable of interpbreeding to produce fertile offspring
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Capable of interbreeding to produce only infertile offspring
Questão 8
Questão
An autotroph is an organism that :
Responda
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Synthesises its organic molecules from simple inorganic substances
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Synthesises its organic molecules from complex inorganic substances
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Synthesises its inorganic molecules from simple organic substances
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Synthesises it organic substances from simple inorganic molecules
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Feeds itself
Questão 9
Questão
A heterotroph is an organism that :
Questão 10
Questão
Saprotrophs are..?
Responda
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Organisms that feed on dead plants and animals, and on the waste matter of animals
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Organisms that feed on dead plants but not animals or their waste matter
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Organisms that synthesise their own organic molecules from simple inorganic substances
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Organisms that obtain organic molecules from other organisms
Questão 11
Questão
Saprotrophs are known as..?
Responda
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Detrivores
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Decomposers
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Herbivores
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Carnivores
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Composers
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Producers
Questão 12
Questão
The trophic level is..?
Responda
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The level at which an organism feeds in a food chain (it feeding level)
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The level at which an organism is consumed in a food chain
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The amount of predators an organism has in a food chain
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The amount of alternative sources of food an organism has in a food web
Questão 13
Questão
The trophic level of producers is level __; for primary consumers it's level __; Secondary consumers are at level __; tertiary consumers sit at level __; and quaternary consumers at level __ .
Responda
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1 | 2 | 3 | 4 | 5
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5 | 4 | 3 | 2 | 1
Questão 14
Questão
Food chains tend to be fairly short because :
Responda
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Energy lost at transfer between trophic levels means few (transfers) can be sustained for long
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Energy is lost through death too quickly
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There are not enough plants in ecosystems
Questão 15
Questão
Gases in the atmosphere that ____ infra red radiation are referred to as green house gases.
Responda
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Absorb
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Reflect
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Combine with
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Repel
Questão 16
Questão
The precausionary principle is..?
Responda
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When an activity raises threats of harm, measures should be taken, even if a cause-and-effect relationship has not been established scientifically.
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Better safe than sorry !
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Better late than never !
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Whe an acivity raises threats of harm, measures shoudn't be taken, unless a cause-and-effect relationship has not been established scientifically.
Questão 17
Questão
List the following in chronological order : __ , __ , __ and __ phase.
Responda
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Lag | Exponential Growth / Log | Linear Growth | Plateu / Stationary
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Plateu | Exponential Growth / Log | Linear Growth | Lag
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Exponential Growth / Log | Lag | Linear Growth | Plateu
Questão 18
Responda
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The process of cummulative change in the heritable characteristics of a population.
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The occurance of mutations in the ehritable characteristics of a population.
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The process of cummulative change in the non-heritable characteristics of a population.
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The process of cummulative change in the heritable characteristics of a ecosystem.
Questão 19
Questão
Examples of Bryophyta are :
Responda
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Liverworts
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Moss
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Flowering Plants
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Conifers
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Ferns
Questão 20
Questão
Examples of Filicinophyta :
Responda
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Ferns
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Flowering Plants
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Liverworts
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Moss
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Conifers
Questão 21
Questão
Examples of Coniferophyta :
Responda
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Conifers
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Moss
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Liverworts
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Flowering Plants
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Pine Trees
Questão 22
Questão
Examples of Angiospermophyta :
Responda
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Flowers
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Grass
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Moss
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Liverworts
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Conifers
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Ferns
Questão 23
Questão
Examples of Porifera :
Responda
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Sponges
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Flatworms
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Snails
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Molluscs
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Insects
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Arachnids
Questão 24
Questão
Examples Of Cnidaria :
Responda
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Jellyfish
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Flatworm
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Snail
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Sponge
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Insects
Questão 25
Questão
Examples of Platyhelminthes :
Responda
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Flatworms
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Molluscs
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Jellyfish
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Insects
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Snails
Questão 26
Questão
Examples of Nematoda :
Responda
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Roundworm
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Snails
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Aracnids
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Sponges
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Jellyfish
Questão 27
Questão
Examples of Mollusca :
Responda
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Snails
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Molluscs
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Sponges
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Flatworms
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Jellyfish
Questão 28
Questão
Examples of Anthropoda :
Responda
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Aracnids
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Insects
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Crustaceans
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Sponges
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Flatworms
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Molluscs
Questão 29
Questão
Pyramid of energy shows the flow of energy in a food chain.
Questão 30
Questão
Radiant energy from the sun reaches the earth and warms it along with the sea. The earth then radiates infra-red radiation back towards space, however, clouds reflect it back and much is absorbed by gases in the atmosphere. This effect is called the greenhouse effect and is needed to keep the earth warm.
Questão 31
Questão
Naturally occurring greenhouse gases include:
Responda
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Phosphate
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Methane
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Water Vapour
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Phosphorous
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Carbon dioxide
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CFCs
Questão 32
Questão
As a population increases, environmental resistance occurs i.e space and resources increase, and competition decreases.
Questão 33
Questão
Intense cold is an example of a density-independent factor.
Questão 34
Questão
Natural selection can essentially be described as 'survival of the fittest'.