55 Questions
What is the role of autotrophs in an ecosystem?
Convert solar energy into chemical energy
Why do primary consumers receive only around 10% of the energy stored by plants?
Energy is lost through metabolic processes and heat
Which group of organisms gains about 1% of the energy captured by producers?
Secondary Consumers
What is the main reason for the decrease in energy availability as you move up the trophic levels?
Energy loss due to metabolic processes and heat
Which organisms are considered apex predators in an ecosystem?
Tertiary Consumers
What is the primary source of energy for all organisms in an ecosystem?
Solar energy
What is the role of decomposers in an ecosystem?
They recycle nutrients back into the ecosystem
Which trophic level typically has the largest number of organisms?
Producers
Which type of pyramid shows the total mass of living material at each trophic level?
Pyramid of Biomass
What could be the potential impact of removing a hyena from a food web?
Increase in the population of primary and secondary consumers
Which of the following is a primary consumer in a grassland ecosystem?
Impala
What is the final product of photosynthesis?
Glucose
Which of the following provides a more complex and realistic depiction of feeding relationships within an ecosystem?
Food web
Which trophic level is occupied by the organisms that are least in number due to the highest energy loss?
Tertiary Consumers
What is the role of a leopard in a grassland ecosystem?
Secondary Consumer
What is the significance of energy pyramids in understanding ecological dynamics?
They represent energy content at each level, showing a clear and consistent decrease in energy as one moves up the pyramid
What happens to the energy as it flows through various trophic levels in an ecosystem?
It decreases at each level.
Which organisms form the basis of the food chain in an ecosystem by converting solar energy into chemical energy through photosynthesis?
Producers (Autotrophs)
In an ecosystem, which group of organisms receives about 1% of the energy originally captured by the producers?
Tertiary Consumers
What is the primary source of energy for all organisms in an ecosystem?
Solar energy from sunlight
Which trophic level typically has organisms that consume plants to obtain energy?
Primary Consumers (Herbivores)
What is the role of apex predators in an ecosystem's trophic structure?
To regulate the population of primary consumers
What type of organisms are eagles and sharks in an ecosystem?
Tertiary Consumers
How do autotrophs contribute to the energy flow in an ecosystem?
By converting solar energy into chemical energy
Which group of organisms gains about 0.1% of the energy initially fixed by the producers?
Tertiary Consumers
What is the main reason for the significant loss of energy as it flows through various trophic levels in an ecosystem?
Heat loss during energy transfer processes
Which organism in a grassland ecosystem occupies the third trophic level?
Leopard
Which organisms are responsible for breaking down dead organic matter into nutrients for the ecosystem?
Decomposers
Which of the following best represents the relationship between trophic levels in a food chain?
A decrease in biomass and energy as you move up the trophic levels
In a food web, if a hyena is removed, which of the following could result?
An increase in the population of secondary consumers
Which of the following is not a type of pyramid used to represent energy flow in an ecosystem?
Pyramid of Species
Which of the following is not a step in photosynthesis?
Sunlight + Water → Glucose + Oxygen
Which organism in a grassland ecosystem is most likely to be affected by an increase in the population of primary consumers?
Impala
Which of the following is a primary consumer in a grassland ecosystem?
Impala
Which trophic level is most affected by energy loss during trophic transfer?
Tertiary Consumers
Which of the following is not a benefit of a food web over a food chain?
Illustrates the flow of energy in a simple and linear manner
What is the primary reason for the significant loss of energy as it flows through various trophic levels in an ecosystem?
Energy used for growth and life activities
Which organisms typically receive about 1% of the energy originally captured by the producers in an ecosystem?
Secondary consumers
Why do tertiary consumers, such as eagles and sharks, only gain about 0.1% of the energy initially fixed by the producers?
High metabolic losses
Which organisms form the basis of the food chain by converting solar energy into chemical energy through photosynthesis?
Producers
What is the role of autotrophs (producers) in an ecosystem's energy flow?
Converting solar energy into chemical energy
Which trophic level typically has organisms that consume plants to obtain energy?
Primary consumers
What happens to the unused energy in an ecosystem?
Converted into heat and lost
What is the major role of decomposers in an ecosystem's energy dynamics?
Converting dead organic matter into nutrients for producers
How do primary consumers contribute to the overall energy flow in an ecosystem?
By consuming producers and kicking off the food chain
What process allows producers to store energy for primary consumers?
Photosynthesis
Which trophic level has the most significant impact on a grassland ecosystem's stability?
Secondary consumers
Which type of organism is responsible for releasing oxygen in a food chain?
Producers
Which organism directly impacts the energy available at the secondary consumer trophic level?
Primary consumers
Which type of pyramid best represents the relationship between trophic levels in a grassland ecosystem?
Pyramid of energy
Which organism has the largest impact on the biomass in a grassland ecosystem?
Green plant
Which organism plays a crucial role in nutrient recycling in a grassland ecosystem?
Bacteria
Which organism exhibits the most complex feeding relationships in a grassland ecosystem?
Hyena
Which organism is responsible for directly transferring energy from producers to apex predators in a grassland ecosystem?
Leopard
Which organism is the most affected by energy loss during trophic transfer in a grassland ecosystem?
Leopard
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