==> -WAEC GCE 2024 BIOLOGY ANSWERS WWW.EXAMHACKER.COM.NG
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27TH NOV 2024
Biology questions and answer– 02:300am – 04:30pm
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*WAEC GCE BIOLOGY*
*NUMBER THREE*
(3ai)
Ecology is the study of the relationships between living organisms and their environment. It examines how living things interact with each other and with the non-living components of their environment, such as air, water, and soil.
(3aii)
An ecosystem is a community of living organisms (plants, animals, and microorganisms) interacting with each other and with their physical environment. The components of an ecosystem are interdependent and form a complex web of relationships.
(3aiii)
The biosphere is the part of the Earth's environment that supports life. It includes all the living organisms on the planet, as well as the physical environment they inhabit, such as the atmosphere, hydrosphere, and lithosphere.
(3bi)
(PICK ANY TWO)
(i) Producers
(ii) Consumers
(iii) Decomposers
(iv) Abiotic factors
(3bii)
(PICK ANY TWO)
(i) Producers: Organisms that can synthesize their own food, usually through photosynthesis, and form the base of the food chain.
(ii) Consumers: Organisms that obtain energy by consuming other organisms, either directly (herbivores) or indirectly (carnivores and omnivores).
(iii) Decomposers: Organisms that break down dead organic matter, releasing nutrients back into the environment for reuse by producers.
(iv) Abiotic factors: The physical and chemical components of the environment, such as water, air, soil, and sunlight, which provide the necessary resources and conditions for life.
(3ci)
(PICK ANY FOUR)
(i) High species diversity
(ii) Lush vegetation and dense canopy
(iii) Warm and humid climate year-round
(iv) High rainfall (typically over 2,000 mm per year)
(v) Nutrient-poor soil
(vi) Vertical stratification of the vegetation
(3cii)
(PICK ANY TWO)
(i) Tall, straight trunks to reach the canopy and compete for sunlight
(ii) Broad, flat leaves to maximize light absorption for photosynthesis
(iii) Buttress roots to provide stability in the shallow, nutrient-poor soil
(iv) Ability to shed leaves during the dry season to conserve water
(v) Bark that is resistant to fire and pests
(vi) Seed dispersal mechanisms
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