11. (a) Explain the following terms used in ecology:
(i) Biosphere
(ii) Abiotic
(iii) Niche
(b) The diagram shows an example of interconnected food chains - Leaving Cert Biology - Question 11 - 2022
Question 11
11. (a) Explain the following terms used in ecology:
(i) Biosphere
(ii) Abiotic
(iii) Niche
(b) The diagram shows an example of interconnected food chains.
(i) What... show full transcript
Worked Solution & Example Answer:11. (a) Explain the following terms used in ecology:
(i) Biosphere
(ii) Abiotic
(iii) Niche
(b) The diagram shows an example of interconnected food chains - Leaving Cert Biology - Question 11 - 2022
Step 1
Explain the following terms used in ecology: (i) Biosphere
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Answer
The biosphere is defined as the region of Earth where life can exist. It encompasses all living organisms and their environments, including land, water, and the atmosphere.
Step 2
Explain the following terms used in ecology: (ii) Abiotic
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Answer
Abiotic refers to non-living components of an ecosystem. These include physical and chemical factors such as sunlight, temperature, water, and minerals that influence the living organisms.
Step 3
Explain the following terms used in ecology: (iii) Niche
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A niche is the role or function of an organism within its ecosystem. It includes how the organism interacts with biotic and abiotic factors, how it obtains food, and its habitat.
Step 4
What term describes a collection of interconnected food chains?
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Answer
The term that describes a collection of interconnected food chains is a 'food web.'
Step 5
What is the primary source of energy for a producer in a food chain?
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The primary source of energy for a producer in a food chain is the 'Sun,' as producers, such as plants, utilize sunlight for photosynthesis.
Step 6
Identify a producer from the diagram.
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Answer
A producer from the diagram is either 'Blackberry' or 'Grass.'
Step 7
Name one carnivore from the diagram.
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One carnivore from the diagram is either 'Owl' or 'Spider.'
Step 8
What is an omnivore?
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An omnivore is an animal that eats both plant and animal material.
Step 9
Name one omnivore from the diagram.
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One omnivore from the diagram is 'Fox' or 'Blackbird.'
Step 10
Write out any one food chain from the diagram.
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Answer
An example of a food chain from the diagram is: Grass → Grasshopper → Shrew → Owl.
Step 11
Suggest what would happen to the population of aphids if a disease reduced the spider population.
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If a disease reduced the spider population, the population of aphids would likely increase, as spiders are natural predators of aphids.
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