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Unit 6 : Ecology, Evolution & Biodiversity

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IBD Biology (Unit 6 : Ecology, Evolution & Biodiversity) Quiz on Unit 6 : Ecology, Evolution & Biodiversity, created by cloud.berry on 04/06/2013.
cloud.berry
Quiz by cloud.berry, updated more than 1 year ago
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Created by cloud.berry over 11 years ago
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Resource summary

Question 1

Question
Ecology is the study of..?
Answer
  • Living things in their environment.
  • Organisms in their unnatural habitats
  • Ecosystems
  • Plants and the competition they face

Question 2

Question
An Ecosystem is..?
Answer
  • A community of organisms and their surroundings
  • The environment in which organisms live and with which they interact
  • Community of predators only
  • Acommunity of plants and prokaryotes

Question 3

Question
The organisms (community) of an ecosystem are called the ____ component & the physical environment is known as the ____ component.
Answer
  • Biotic | Abiotic
  • Abiotic | Biotic
  • Abiotic | Antibiotic
  • Biotic | Antibiotic

Question 4

Question
A Habitat is..?
Answer
  • The locality in which an organism occurs.
  • Where the organism is normally found
  • Where the organism lives
  • Where the organism has a nest
  • Where the organism has died

Question 5

Question
The population is..?
Answer
  • All the living things of the same species in a habitat at any one time
  • All the living things in a habitat at any one time
  • All the different species in an ecosystem atr any one time

Question 6

Question
A community is..?
Answer
  • All the living things in a habitat or ecosystem
  • The total of all the populations of an ecosystem
  • All the living things of the same species in a habitat at any one time

Question 7

Question
Traits of organisms of the same species are..?
Answer
  • A group of individuals with common ancestry
  • Capable of interbreeding to produce fertile offspring
  • Incapable of interpbreeding to produce fertile offspring
  • Capable of interbreeding to produce only infertile offspring

Question 8

Question
An autotroph is an organism that :
Answer
  • Synthesises its organic molecules from simple inorganic substances
  • Synthesises its organic molecules from complex inorganic substances
  • Synthesises its inorganic molecules from simple organic substances
  • Synthesises it organic substances from simple inorganic molecules
  • Feeds itself

Question 9

Question
A heterotroph is an organism that :
Answer
  • Obtains organic molecules from other organisms
  • Synthesises its organic molecules from simple inorganic substances

Question 10

Question
Saprotrophs are..?
Answer
  • Organisms that feed on dead plants and animals, and on the waste matter of animals
  • Organisms that feed on dead plants but not animals or their waste matter
  • Organisms that synthesise their own organic molecules from simple inorganic substances
  • Organisms that obtain organic molecules from other organisms

Question 11

Question
Saprotrophs are known as..?
Answer
  • Detrivores
  • Decomposers
  • Herbivores
  • Carnivores
  • Composers
  • Producers

Question 12

Question
The trophic level is..?
Answer
  • The level at which an organism feeds in a food chain (it feeding level)
  • The level at which an organism is consumed in a food chain
  • The amount of predators an organism has in a food chain
  • The amount of alternative sources of food an organism has in a food web

Question 13

Question
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 __ .
Answer
  • 1 | 2 | 3 | 4 | 5
  • 5 | 4 | 3 | 2 | 1

Question 14

Question
Food chains tend to be fairly short because :
Answer
  • Energy lost at transfer between trophic levels means few (transfers) can be sustained for long
  • Energy is lost through death too quickly
  • There are not enough plants in ecosystems

Question 15

Question
Gases in the atmosphere that ____ infra red radiation are referred to as green house gases.
Answer
  • Absorb
  • Reflect
  • Combine with
  • Repel

Question 16

Question
The precausionary principle is..?
Answer
  • When an activity raises threats of harm, measures should be taken, even if a cause-and-effect relationship has not been established scientifically.
  • Better safe than sorry !
  • Better late than never !
  • Whe an acivity raises threats of harm, measures shoudn't be taken, unless a cause-and-effect relationship has not been established scientifically.

Question 17

Question
List the following in chronological order : __ , __ , __ and __ phase.
Answer
  • Lag | Exponential Growth / Log | Linear Growth | Plateu / Stationary
  • Plateu | Exponential Growth / Log | Linear Growth | Lag
  • Exponential Growth / Log | Lag | Linear Growth | Plateu

Question 18

Question
Evolution is..?
Answer
  • The process of cummulative change in the heritable characteristics of a population.
  • The occurance of mutations in the ehritable characteristics of a population.
  • The process of cummulative change in the non-heritable characteristics of a population.
  • The process of cummulative change in the heritable characteristics of a ecosystem.

Question 19

Question
Examples of Bryophyta are :
Answer
  • Liverworts
  • Moss
  • Flowering Plants
  • Conifers
  • Ferns

Question 20

Question
Examples of Filicinophyta :
Answer
  • Ferns
  • Flowering Plants
  • Liverworts
  • Moss
  • Conifers

Question 21

Question
Examples of Coniferophyta :
Answer
  • Conifers
  • Moss
  • Liverworts
  • Flowering Plants
  • Pine Trees

Question 22

Question
Examples of Angiospermophyta :
Answer
  • Flowers
  • Grass
  • Moss
  • Liverworts
  • Conifers
  • Ferns

Question 23

Question
Examples of Porifera :
Answer
  • Sponges
  • Flatworms
  • Snails
  • Molluscs
  • Insects
  • Arachnids

Question 24

Question
Examples Of Cnidaria :
Answer
  • Jellyfish
  • Flatworm
  • Snail
  • Sponge
  • Insects

Question 25

Question
Examples of Platyhelminthes :
Answer
  • Flatworms
  • Molluscs
  • Jellyfish
  • Insects
  • Snails

Question 26

Question
Examples of Nematoda :
Answer
  • Roundworm
  • Snails
  • Aracnids
  • Sponges
  • Jellyfish

Question 27

Question
Examples of Mollusca :
Answer
  • Snails
  • Molluscs
  • Sponges
  • Flatworms
  • Jellyfish

Question 28

Question
Examples of Anthropoda :
Answer
  • Aracnids
  • Insects
  • Crustaceans
  • Sponges
  • Flatworms
  • Molluscs

Question 29

Question
Pyramid of energy shows the flow of energy in a food chain.
Answer
  • True
  • False

Question 30

Question
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.
Answer
  • True
  • False

Question 31

Question
Naturally occurring greenhouse gases include:
Answer
  • Phosphate
  • Methane
  • Water Vapour
  • Phosphorous
  • Carbon dioxide
  • CFCs

Question 32

Question
As a population increases, environmental resistance occurs i.e space and resources increase, and competition decreases.
Answer
  • True
  • False

Question 33

Question
Intense cold is an example of a density-independent factor.
Answer
  • True
  • False

Question 34

Question
Natural selection can essentially be described as 'survival of the fittest'.
Answer
  • True
  • False
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