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WAEC Biology – Gambia

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Question 291

What is the correct sequence of biological organization from simplest to most complex?
Levels of organizationLevels of organizationeasy

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Question 292

In humans, which organ is primarily responsible for excretion of nitrogenous wastes?
Excretion and osmoregulationExcretion and osmoregulationmedium

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Question 293

Which process results in genetic variation by exchanging segments between homologous chromosomes?
Heredity and geneticsHeredity and geneticshard

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Question 294

Which process allows substances to move from an area of low concentration to an area of high concentration across a cell membrane?
Cell activities and transportCell activities and transportmedium

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Question 295

Which cell type is specialized for rapid electrical signal transmission in animals?
Cell specializationCell specializationmedium

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Question 296

Which level of organization is composed of different tissues working together to perform a specific function?
Levels of organizationLevels of organizationeasy

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Question 297

What is the main pigment involved in photosynthesis and where is it located?
Photosynthesis and respirationPhotosynthesis and respirationmedium

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Question 298

Which organelle is responsible for the production of ATP through cellular respiration?
Cell structure and ultrastructureCell structure and ultrastructureeasy

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Question 299

During osmoregulation in freshwater fish, which process primarily prevents excessive water influx into the body?
Excretion and osmoregulationExcretion and osmoregulationmedium

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Question 300

Which of the following best explains how natural selection leads to evolution within a population?
Variation and evolutionVariation and evolutionhard

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