Podcast
Questions and Answers
When studying daisy distribution across a field, which method provides the most detailed data on how their numbers change along an environmental gradient?
When studying daisy distribution across a field, which method provides the most detailed data on how their numbers change along an environmental gradient?
- Random sampling with quadrats.
- Measuring abiotic factors only.
- Belt transect with quadrat samples at regular intervals. (correct)
- Mark and recapture.
How does increased light intensity most directly affect daisy abundance?
How does increased light intensity most directly affect daisy abundance?
- Enhanced mineral absorption from the soil.
- Increased photosynthesis, supporting faster growth and reproduction. (correct)
- Reduced water uptake, leading to slower growth.
- Decreased respiration rates, conserving energy.
In a river ecosystem, what is the most reliable indicator of pollution based on species presence?
In a river ecosystem, what is the most reliable indicator of pollution based on species presence?
- The presence of specific pollution-tolerant species downstream from a farm. (correct)
- An increase in the river's flow rate.
- A decrease in water temperature.
- An increase in the population size of all species.
What is the most significant consequence of increased deer populations on bluebell populations, considering the lack of natural predators?
What is the most significant consequence of increased deer populations on bluebell populations, considering the lack of natural predators?
How does fish farming potentially contribute to maintaining biodiversity despite being an artificial ecosystem?
How does fish farming potentially contribute to maintaining biodiversity despite being an artificial ecosystem?
Which process in the water cycle directly involves a change in state from liquid to gas?
Which process in the water cycle directly involves a change in state from liquid to gas?
How does the combustion of fossil fuels contribute to the carbon cycle?
How does the combustion of fossil fuels contribute to the carbon cycle?
What is the primary environmental disadvantage associated with the use of fertilizers in agriculture?
What is the primary environmental disadvantage associated with the use of fertilizers in agriculture?
What is the most likely consequence of a rising global demand for animal-based protein, particularly in poorer regions?
What is the most likely consequence of a rising global demand for animal-based protein, particularly in poorer regions?
Which of the following is a direct advantage of fertilizer use in agriculture?
Which of the following is a direct advantage of fertilizer use in agriculture?
Flashcards
Belt Transect
Belt Transect
A sampling method using a strip (belt) to study the distribution of organisms and abiotic factors at regular intervals.
Abiotic Factors
Abiotic Factors
Rainfall, temperature, wind speed, air humidity and light intensity
Pollution Effect on Rivers
Pollution Effect on Rivers
Entering of pollutants, decreases in water quality and biodiversity of the area.
Deer Impact on Bluebells
Deer Impact on Bluebells
Signup and view all the flashcards
Fish Farming Benefits
Fish Farming Benefits
Signup and view all the flashcards
Carbon Cycle
Carbon Cycle
Signup and view all the flashcards
Fertiliser Advantages
Fertiliser Advantages
Signup and view all the flashcards
Eutrophication
Eutrophication
Signup and view all the flashcards
Rising Demand for Animal-Based Protein
Rising Demand for Animal-Based Protein
Signup and view all the flashcards
Study Notes
- The optimal method for investigating daisy plant distribution is using a belt transect with quadrat samples at regular intervals.
Abiotic Factors Affecting Daisy Distribution
- Rainfall
- Temperature
- Wind speed
- Air humidity
- Light intensity
Light Intensity & Daisy Abundance
- Higher light intensity leads to increased photosynthesis
- Increased photosynthesis results in faster growth and reproduction in daisies
Impact of Pollution on River Ecosystems
- Pollutants can enter water sources from farms
- Species found before the farm indicate clean water conditions, while species found after indicate polluted waters
- Pollution reduces water quality
- Pollution reduces biodiversity
Impact of Deer on Bluebell Populations
- There is a positive correlation: more deer leads to more bluebell flower stalks being eaten
- A lack of natural predators results in an increase in muntjac deer
- More damage to bluebells leads to fewer seeds being produced
- Fewer seeds being produced leads to a decline in the bluebell population
Fish Farming & Biodiversity
- Fish farming involves keeping fish in pens, tanks, or ponds
- Fish are fed and monitored for health until they are caught
- Fish farming reduces the need for wild fishing
- Reduced wild fishing results in less disruption to food webs
- Less disruption ensures biodiversity is maintained
Water Cycle Processes
- Evaporation of water occurs from Earth's surface
- Water vapour forms in the air
- Water vapour condenses into clouds
- Clouds may freeze into hail or snow
- Precipitation (rain, hail, or snow) falls to the ground
- Water returns to lakes, rivers, and oceans
Carbon Cycle
- CO2 enters biotic systems through photosynthesis, where it is used to make glucose
- Carbon returns to the abiotic system through respiration
- Respiration involves glucose breakdown, which leads to CO2 release
- Carbon returns to the abiotic system through the combustion of fossil fuels
- The combustion of fossil fuels releases stored carbon as CO2
Fertiliser Use in Agriculture
- Fertilisers add mineral ions (nitrates, phosphates) to the soil
- This supports plant growth, increasing crop yield
- More food availability helps meet the demands of a growing population
- Fertiliser use prevents food shortages/starvation
- Fertiliser use increases farmer profits
- Fertilisers can be expensive for farmers
- Mineral ions can leach into water bodies and cause eutrophication
- Eutrophication can lead to algal blooms
- Algal blooms lead to oxygen depletion in water
- Oxygen depletion results in the death of aquatic life
Rising Demand for Animal-Based Protein & Food Security
- Meat production requires more land, water, and resources than other forms of food production
- Increased demand leads to higher food prices
- Higher food prices increase the risk of food insecurity, especially in poorer regions
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
