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WAEC Biology – Liberia

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Question 271

Which organelle is primarily responsible for producing ATP through cellular respiration in eukaryotic cells?
Cell structure and ultrastructureCell structure and ultrastructureeasy

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Question 272

During osmoregulation in freshwater fish, what is the main challenge they face?
Excretion and osmoregulationExcretion and osmoregulationmedium

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Question 273

What is the main function of the spindle fibers during cell division?
Division of cellsDivision of cellseasy

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Question 274

Which process in photosynthesis directly produces oxygen gas?
Photosynthesis and respirationPhotosynthesis and respirationmedium

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Question 275

Which group of organisms is best described as autotrophic?
NutritionNutritioneasy

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Question 276

Which of the following hormones is primarily responsible for regulating blood glucose levels?
Coordination and responsivenessCoordination and responsivenessmedium

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Question 277

Which of the following best describes a homologous chromosome pair?
Heredity and geneticsHeredity and geneticsmedium

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Question 278

In an ecosystem, which process is primarily responsible for returning nitrogen to the atmosphere?
Energy flow and cyclesEnergy flow and cycleshard

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Question 279

Which feature is an example of an adaptation that increases an animal's survival in a desert environment?
Adaptation and natural selectionAdaptation and natural selectionmedium

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Question 280

Which level of biological organization includes all the different populations living and interacting in a particular area?
Levels of organizationLevels of organizationeasy

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