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N5 Biology - 3.2 Distribution of Organisms Flashcards | StudBud
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N5 Biology - 3.2 Distribution of Organisms
N5 Biology - 3.2 Distribution of Organisms
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30 cards
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Practice quiz
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Questions
30
Answers
1
Why are pitfall traps used in sampling?
To identify organisms
To trap plants
To sample the small invertebrates that live on the ground
To sample plants and slow-moving animals
2
Whcih plant has the greatest abundance?
Meadow grass
Ragwort
Pink campion
3
Which of these is NOT a method to minimise errors when using a pH meter?
Not pushing the probe deep into the ground
Push the probe deep into the ground
Take more samples
Clean the probe between readings
4
Which of these is NOT a method to minimise errors when using a pitfall trap?
Disguise the opening
Only count square if more than half of the plant is in the square
Take more samples
Check trap regularly
5
What type of instrument is used to measure temperature?
Thermometer
pH meter
Light meter
Moisture meter
6
Why are quadrats used in sampling?
To sample the small invertebrates that live on the ground
To estimate the abundance of plant or slow moving animals
To identify organisms
To trap small invertebrates
7
Which of the following shows ALL biotic factors?
Competition for resources, disease, food availability, grazing, predation
Competition for resources, light intensity, food availability,
Temperature, pH, light intensity, soil moisture
Temperature, predation, grazing, soil moisture
8
What name is given to a species that by their presence or absence indicate environmental quality/levels of pollution?
Pollution species
Animal species
Plant species
Indicator species
9
Which of these is NOT a method to minimise errors when using a light meter?
Clean the probe between readings
Avoid shading the light meter
Take all measurements at the same time of the day
10
What type of meter is used to measure moisture?
Light
Moisture
Thermometer
pH
11
Why are paired statement keys used in Biology?
To indicate levels of pollution
To identify organisms
To sample plants
To sample animals
12
Which of these is NOT an error when using a moisture meter?
Not taking enough samples
Not cleaning the probe between readings
Not pushing the probe deep into the ground
Clean the probe between readings
13
Which of these is NOT an error when using a light meter?
Not cleaning the probe between readings
Shading the light meter
Light intensity may change because of cloud cover
14
Which techniques can be used to sample abiotic factors?
Light Meter, thermometer, pitfall taps and quadrats only
Pitfall Traps, light meter, pH meter and Moisture meter only
pH Meter, Moisture meter, Light meter and thermometer only
Quadrats, pH Meter, Moisture meter and thermometer only
15
What type of meter is used to measure light intensity?
Moisture
Thermometer
pH
Light
16
Which of the following shows ALL abiotic factors?
Temperature, pH, light intensity, soil moisture
Predation, disease, grazing, food availability
Temperature, pH, light intensity, food availability
Temperature, light intensity, pH, grazing
17
What is the name given to a
living
factor that influences where an organism can live?
Abiotic Factor
Biotic Factor
18
Which of these is NOT an error when using a pitfall trap?
Disguise the opening
Birds may eat trapped animals
Some animals may eat others
Sample may not represent the whole ecosystem
19
From the table, what is the abiotic factor which is affecting moss coverage?
pH
Light intensity
Moisture
Temperature
20
Which of these is NOT a method to minimise errors when using a thermometer?
Allow thermometers to stabilise before taking a reading
Clean the probe between readings
Take more samples
21
Which of these is NOT an error when using a thermometer?
Allow thermometers to stabilise before taking a reading
Not giving thermometers enough time for the alcohol to fully rise/fall
Not taking enough samples
22
Which of these is NOT an error when using a pH meter?
Not pushing the probe deep into the ground
Take more samples
Not taking enough samples
Not cleaning the probe between readings
23
Which of these is NOT a method to minimise errors when using a quadrat?
Ensure random placement of quadrat
Clean the probe between readings
Only count square if more than half of the plant is in the square
Take more samples
24
What is the name given to a
non-living
factor that influences where an organism can live?
Abiotic Factor
Biotic Factor
25
Which techniques can be used to sample plants and animals?
pH Meter and Light meter only
Quadrats and Pitfall traps only
Light Meter and moisture meter only
Pitfall Traps and Moisture meter only
26
What type of meter is used to measure pH?
Moisture
Light
pH
Thermometer
27
Which of these is NOT a method to minimise errors when using a moisture meter?
Clean the probe between readings
Not taking enough samples
Push the probe deep into the ground
Take more samples
28
What is the name given to a species which indicates pollution level by its presence or absence?
Predictor Species
Pollution Species
Indicator Species
29
Which of these is NOT an error when using a quadrat?
Non-random placement of quadrat
Too few samples taken
Ensure random placement of quadrat
Deciding whether sample is “in or out”
30
What sampling technique is shown in the diagram?
Pitfall trap
Quadrat
