Factors Affecting the Distribution of Organisms
Biology · 50 practice questions
Abiotic factors (temperature, rainfall, relative humidity, wind, altitude, salinity, turbidity, pH, edaphic/soil conditions); biotic factors, including human activity.
- Relate the effects of abiotic factors on the distribution of organisms.
- Use appropriate equipment (e.g. secchi disc, thermometer, rain gauge) to measure abiotic factors.
- Describe how the activities of plants and animals, particularly humans, affect distribution.
Try a few questions
- Practice question 1
A rain gauge specifically is used to measure
- A.the exact wind speed recorded at a particular location
- B.a factor entirely unrelated to the measurement of rainfall of any kind
- C.the exact temperature recorded at a particular location
- D.the amount of rainfall received at a particular location
Show the answer
D. the amount of rainfall received at a particular location
A rain gauge is specifically used to measure the amount of rainfall received at a particular location.
- Practice question 2
An anemometer, an instrument used in ecological studies, specifically is used to measure
- A.soil pH, an instrument instead measured using a pH meter
- B.rainfall amount, an instrument instead measured using a rain gauge
- C.a factor entirely unrelated to the measurement of wind speed of any kind
- D.wind speed
Show the answer
D. wind speed
An anemometer, used in ecological studies, specifically is used to measure wind speed.
- Practice question 3
Soil depth, an edaphic factor, specifically can affect plant distribution mainly through its effect on
- A.the rate of photosynthesis occurring within the plant's own leaves directly
- B.root development
- C.the exact colour of the plant's own flowers, with no relation to soil depth
- D.a factor entirely unrelated to root development of any kind
Show the answer
B. root development
Soil depth, an edaphic factor, specifically can affect plant distribution mainly through its effect on root development.
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