Unit 6 : Ecology, Evolution & Biodiversity

Descripción

IBD (Unit 6 : Ecology, Evolution & Biodiversity) Biology Test sobre Unit 6 : Ecology, Evolution & Biodiversity, creado por cloud.berry el 04/06/2013.
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Test por cloud.berry, actualizado hace más de 1 año
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Resumen del Recurso

Pregunta 1

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

Pregunta 2

Pregunta
An Ecosystem is..?
Respuesta
  • 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

Pregunta 3

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

Pregunta 4

Pregunta
A Habitat is..?
Respuesta
  • 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

Pregunta 5

Pregunta
The population is..?
Respuesta
  • 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

Pregunta 6

Pregunta
A community is..?
Respuesta
  • 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

Pregunta 7

Pregunta
Traits of organisms of the same species are..?
Respuesta
  • 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

Pregunta 8

Pregunta
An autotroph is an organism that :
Respuesta
  • 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

Pregunta 9

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

Pregunta 10

Pregunta
Saprotrophs are..?
Respuesta
  • 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

Pregunta 11

Pregunta
Saprotrophs are known as..?
Respuesta
  • Detrivores
  • Decomposers
  • Herbivores
  • Carnivores
  • Composers
  • Producers

Pregunta 12

Pregunta
The trophic level is..?
Respuesta
  • 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

Pregunta 13

Pregunta
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 __ .
Respuesta
  • 1 | 2 | 3 | 4 | 5
  • 5 | 4 | 3 | 2 | 1

Pregunta 14

Pregunta
Food chains tend to be fairly short because :
Respuesta
  • 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

Pregunta 15

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

Pregunta 16

Pregunta
The precausionary principle is..?
Respuesta
  • 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.

Pregunta 17

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

Pregunta 18

Pregunta
Evolution is..?
Respuesta
  • 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.

Pregunta 19

Pregunta
Examples of Bryophyta are :
Respuesta
  • Liverworts
  • Moss
  • Flowering Plants
  • Conifers
  • Ferns

Pregunta 20

Pregunta
Examples of Filicinophyta :
Respuesta
  • Ferns
  • Flowering Plants
  • Liverworts
  • Moss
  • Conifers

Pregunta 21

Pregunta
Examples of Coniferophyta :
Respuesta
  • Conifers
  • Moss
  • Liverworts
  • Flowering Plants
  • Pine Trees

Pregunta 22

Pregunta
Examples of Angiospermophyta :
Respuesta
  • Flowers
  • Grass
  • Moss
  • Liverworts
  • Conifers
  • Ferns

Pregunta 23

Pregunta
Examples of Porifera :
Respuesta
  • Sponges
  • Flatworms
  • Snails
  • Molluscs
  • Insects
  • Arachnids

Pregunta 24

Pregunta
Examples Of Cnidaria :
Respuesta
  • Jellyfish
  • Flatworm
  • Snail
  • Sponge
  • Insects

Pregunta 25

Pregunta
Examples of Platyhelminthes :
Respuesta
  • Flatworms
  • Molluscs
  • Jellyfish
  • Insects
  • Snails

Pregunta 26

Pregunta
Examples of Nematoda :
Respuesta
  • Roundworm
  • Snails
  • Aracnids
  • Sponges
  • Jellyfish

Pregunta 27

Pregunta
Examples of Mollusca :
Respuesta
  • Snails
  • Molluscs
  • Sponges
  • Flatworms
  • Jellyfish

Pregunta 28

Pregunta
Examples of Anthropoda :
Respuesta
  • Aracnids
  • Insects
  • Crustaceans
  • Sponges
  • Flatworms
  • Molluscs

Pregunta 29

Pregunta
Pyramid of energy shows the flow of energy in a food chain.
Respuesta
  • True
  • False

Pregunta 30

Pregunta
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.
Respuesta
  • True
  • False

Pregunta 31

Pregunta
Naturally occurring greenhouse gases include:
Respuesta
  • Phosphate
  • Methane
  • Water Vapour
  • Phosphorous
  • Carbon dioxide
  • CFCs

Pregunta 32

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

Pregunta 33

Pregunta
Intense cold is an example of a density-independent factor.
Respuesta
  • True
  • False

Pregunta 34

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