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National 5 Biology 3.2 Distribution of Organisms Flashcards | StudBud
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National 5 Biology 3.2 Distribution of Organisms
National 5 Biology 3.2 Distribution of Organisms
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1
What can abiotic and biotic factors cause?
A decrease in biodiversity
Biodiversity stays the same
An increase in biodiversity
2
Which plant has the greatest abundance?
Meadow grass
Ragwort
Pink campion
3
What can affect the distribution of organisms?
Quadrat sampling
Biotic factors
Abiotic factors
Photosynthesis
4
Which of these is NOT an error when using a quadrat?
Ensure random placement of quadrat
Deciding whether sample is “in or out”
Non-random placement of quadrat
Too few samples taken
5
Which of these is NOT an error when using a moisture meter?
Clean the probe between readings
Not pushing the probe deep into the ground
Not cleaning the probe between readings
Not taking enough samples
6
Which of the following shows ALL biotic factors?
Competition for resources, light intensity, food availability,
Temperature, pH, light intensity, soil moisture
Competition for resources, disease, food availability, grazing, predation
Temperature, predation, grazing, soil moisture
7
Which of these is NOT an error when using a light meter?
Not cleaning the probe between readings
Light intensity may change because of cloud cover
Shading the light meter
8
Which of these is NOT a method to minimise errors when using a pitfall trap?
Only count square if more than half of the plant is in the square
Check trap regularly
Take more samples
Disguise the opening
9
What sampling technique is shown in the diagram?
Quadrat
Pitfall trap
10
What type of instrument is used to measure temperature?
Moisture meter
pH meter
Thermometer or temperature probe
Light meter
11
What name is given to a species that by their presence or absence indicate environmental quality/levels of pollution?
Animal species
Plant species
Pollution species
Indicator species
12
Why are pitfall traps used in sampling?
To identify organisms
To trap plants
To sample animals such as insects
To sample plants and slow-moving animals
13
What is the name given to a species which indicates pollution level by its presence or absence?
Predictor Species
Indicator Species
Pollution Species
14
Which techniques can be used to sample plants and animals?
Quadrats and Pitfall traps only
Light Meter and moisture meter only
Pitfall Traps and Moisture meter only
pH Meter and Light meter only
15
Which of these is NOT an error when using a thermometer?
Not taking enough samples
Allow thermometers to stabilise before taking a reading
Not giving thermometers enough time for the alcohol to fully rise/fall
16
Which of the following shows ALL abiotic factors?
Predation, disease, grazing, food availability
Temperature, pH, light intensity, food availability
Temperature, pH, light intensity, soil moisture
Temperature, light intensity, pH, grazing
17
What type of meter is used to measure moisture?
pH
Thermometer
Light
Moisture
18
Which of these is NOT a method to minimise errors when using a light meter?
Take all measurements at the same time of the day
Avoid shading the light meter
Clean the probe between readings
19
Which techniques can be used to sample abiotic factors?
Quadrats, pH Meter, Moisture meter and thermometer only
pH Meter, Moisture meter, Light meter and thermometer only
Pitfall Traps, light meter, pH meter and Moisture meter only
Light Meter, thermometer, pitfall taps and quadrats only
20
Which of these is NOT a method to minimise errors when using a pH meter?
Take more samples
Clean the probe between readings
Push the probe deep into the ground
Not pushing the probe deep into the ground
21
Which of these is NOT a method to minimise errors when using a quadrat?
Only count square if more than half of the plant is in the square
Ensure random placement of quadrat
Take more samples
Clean the probe between readings
22
From the table, what is the abiotic factor which is affecting moss coverage?
pH
Light intensity
Temperature
Moisture
23
Which of these is NOT a method to minimise errors when using a moisture meter?
Push the probe deep into the ground
Not taking enough samples
Clean the probe between readings
Take more samples
24
Why are quadrats used in sampling?
To sample plants or slow moving animals
To trap small invertebrates
To identify organisms
To sample animals such as insects
25
Which of these is NOT a method to minimise errors when using a thermometer?
Clean the probe between readings
Take more samples
Allow thermometers to stabilise before taking a reading
26
Which of these is NOT an error when using a pitfall trap?
Disguise the opening
Birds may eat trapped animals
Sample may not represent the whole ecosystem
Some animals may eat others
27
How is soil pH measured?
using a light meter
using a thermometer or temperature probe
using a moisture meter
using pH meters or chemical test
28
Why are paired statement keys used in Biology?
To indicate levels of pollution
To identify organisms
To sample animals
To sample plants
29
What is the name given to a
non-living
factor that influences where an organism can live?
Biotic Factor
Abiotic Factor
30
What type of meter is used to measure light intensity?
Moisture
Thermometer
Light
pH
31
Which of these is NOT an error when using a pH meter?
Not taking enough samples
Take more samples
Not pushing the probe deep into the ground
Not cleaning the probe between readings
32
What is the name given to a
living
factor that influences where an organism can live?
Biotic Factor
Abiotic Factor
33
Which of these features must be present when using quadrats and pitfall traps?
Representative sampling (random sampling)
Adequate replication (taking more samples)
Using smaller quadrats and pitfall traps
Using less quadrats and pitfall traps
