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WAEC Biology – Sierra Leone

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Question 51

Which level of biological organization correctly orders components from simplest to most complex?
Levels of organizationLevels of organizationmedium

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Question 52

Which pigment primarily captures light energy for photosynthesis in plants?
Photosynthesis and respirationPhotosynthesis and respirationeasy

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Question 53

Which process in plants releases carbon dioxide as a by-product?
Photosynthesis and respirationPhotosynthesis and respirationmedium

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Question 54

Which organ in humans is primarily responsible for filtering blood and excreting urea?
Excretion and osmoregulationExcretion and osmoregulationeasy

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Question 55

Which concept explains how species change over time through differential survival and reproduction?
Variation and evolutionVariation and evolutionhard

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Question 56

During osmosis, water moves across a semi-permeable membrane from an area of:
Cell activities and transportCell activities and transporteasy

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Question 57

Which phase of mitosis is characterized by the separation of sister chromatids to opposite poles of the cell?
Division of cellsDivision of cellsmedium

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Question 58

Which of the following cell types is specialized for rapid transmission of electrical impulses?
Cell specializationCell specializationmedium

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Question 59

Which level of biological organization is correctly ordered from simplest to most complex?
Levels of organizationLevels of organizationeasy

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Question 60

In photosynthesis, the light-dependent reactions primarily occur in which part of the chloroplast?
Photosynthesis and respirationPhotosynthesis and respirationmedium

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