10. (a) Explain the following terms used in ecology:
(i) Habitat
(ii) Biosphere
(iii) Conservation - Leaving Cert Biology - Question 10 - 2019
Question 10
10. (a) Explain the following terms used in ecology:
(i) Habitat
(ii) Biosphere
(iii) Conservation.
(b) Read the paragraph below and answer the questions that fo... show full transcript
Worked Solution & Example Answer:10. (a) Explain the following terms used in ecology:
(i) Habitat
(ii) Biosphere
(iii) Conservation - Leaving Cert Biology - Question 10 - 2019
Step 1
Explain the following terms used in ecology: (i) Habitat
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Answer
A habitat is defined as the natural environment where an organism lives. It includes the physical surroundings that support the organism's life, such as air, water, food sources, and shelter.
Step 2
Explain the following terms used in ecology: (ii) Biosphere
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The biosphere refers to any place on Earth where life can exist. This includes regions of land, water, and the atmosphere that support living organisms.
Step 3
Explain the following terms used in ecology: (iii) Conservation
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Conservation is the responsible management of ecosystems and natural resources. It aims to protect biodiversity and ensure that resources are used sustainably to avoid depletion.
Step 4
Read the paragraph below and answer the questions: (i) Give an example of a pollinator.
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Answer
An example of a pollinator is a bee.
Step 5
Read the paragraph below and answer the questions: (ii) How do pollinators benefit from hedgerows?
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Pollinators benefit from hedgerows by gaining access to food sources such as flowers that bloom in spring and autumn, providing them with the necessary calories for sustenance.
Step 6
Read the paragraph below and answer the questions: (iii) Give two other ways hedgerows provide benefit in nature.
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Hedgerows provide benefits by: 1. Nesting sites for birds and insects. 2. Dissipating rainwater and protecting soil from erosion.
Step 7
Read the paragraph below and answer the questions: (iv) Name two plants that are found in hedgerows.
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Two plants commonly found in hedgerows are violet and primrose.
Step 8
Read the paragraph below and answer the questions: (v) Name two mammals that are found in hedgerows.
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Two mammals that are often found in hedgerows are foxes and hedgehogs.
Step 9
Read the paragraph below and answer the questions: (vi) How does a plant benefit by producing flowers in early spring?
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A plant benefits from producing flowers in early spring by attracting pollinators at a time when food sources may be scarce, thus ensuring pollination and successful reproduction.
Step 10
What is meant by the term carnivore? (i)
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A carnivore is an organism that primarily eats other animals, relying on them as its main source of nutrition.
Step 11
What is meant by the term carnivore? (ii) Name a carnivore from an ecosystem other than the hedgerow.
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An example of a carnivore from another ecosystem is a shark.
Step 12
What is meant by the term carnivore? (iii) Describe an adaptation that helps this animal to survive.
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One adaptation of sharks is their streamlined body shape, which allows for efficient swimming and hunting in aquatic environments.
Step 13
Suggest how the badgers should have been marked. (v)
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Badgers could have been marked using unobtrusive methods such as microchips or ear tags to avoid distress and ensure accurate tracking.
Step 14
Using the data above, calculate the total population of badgers in the study area. (vi)
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To calculate the total badger population in the area, use the formula:
Total population = (Badgers caught and marked in session 1) * (Badgers caught in session 2) / (Badgers caught in session 2, marked from session 1).
Substituting the values:
Total population = (180) * (150) / (40) = 675.
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