Ecology: ecosystems and habitats — KCSE Biology
KCSE Biology · 78 practice questions · 3 syllabus objectives
What You'll Learn
Key learning outcomes for this topic, aligned to the KNEC KCSE syllabus.
Define ecosystem, habitat, and niche
Distinguish between biotic and abiotic factors
Ecology: ecosystems and habitats
Sample Questions
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Define the following ecological terms: (a) Symbiosis (b) Parasitism (c) Mutualism
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In the study of ecological interactions, understanding the relationships between individual organisms and their environments is crucial. This includes exploring the concepts of species-specific ecology and community ecology, which provide insights into the dynamics of ecosystems and their various components. (a) Define the term autecology. (1 mark) (b) Define the term synecology. (1 mark) (c) State one difference between autecology and synecology. (1 mark)
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In the study of natural environments, understanding the interactions between living organisms and their surroundings is crucial. This includes exploring concepts such as the total mass of living matter, the limits of population sustainability, and the relationships between different trophic levels within these systems. (a) Define the term biomass. (1 mark) (b) Define the term carrying capacity. (2 marks) (c) Explain why the biomass of producers is generally greater than that of primary consumers in a balanced ecosystem. (2 marks)
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In the study of ecological relationships, understanding the dynamics of living organisms within their environments is crucial. This involves distinguishing between groups of organisms and their specific traits within a given area. (a) Distinguish between a community and a population. (2 marks) (b) State three main characteristics of a population. (3 marks)
Why Practise Ecology: ecosystems and habitats?
KNEC Aligned
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