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Biology Past Questions and Answers

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Waec Biology Questions

Question 1236:

Which of the following organisms is an endoparasite?

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A Mice
B Mosquito
C Ascaris
D Dodder

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Question 1237:

Which of the following statements about ecosystems is false?

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A All the energy entering the ecosystem is passed on to decomposers
B The primary producers provide energy for herbivores and carnivores
C Ecosystems must start with the capture of energy by autotrophs
D Energy transfer from one trophic level to the other is not 100% efficient.

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Question 1238:

What is the critical limiting factor for plants below the photic zone is an aquatic ecosystem?

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A Availability of nutrients
B Availability of water
C Intensity of light
D Carbon dioxide concentration

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Question 1239:

Which of the following instruments is used to estimate the number of plants in a habitat?

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A Pooter
B Pitfall trap
C Quadrat
D Sweep net

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Question 1240:

Which of the following statements is true about sandy soil? It

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A Has limited air space
B Is light and easy to dig
C Drains slowly
D Is heavy and poorly aerated

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