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Main Subjects MCQs With Answers
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What is the primary function of a glass prism in basic optics experiments?
ATo block ultraviolet radiation only
BTo split white light into its component colors through refraction
CTo absorb all visible light completely
DTo generate new colors of light that don't already exist in sunlight
In optics, what is the key difference between a real image and a virtual image?
AThere is no meaningful difference between the two types of images
BA real image can be projected onto a screen, while a virtual image cannot
CA virtual image can be projected onto a screen, while a real image cannot
DReal images only occur in mirrors, while virtual images only occur in lenses
What term describes the biological ability of certain organisms, such as starfish, to regrow a lost or damaged body part?
ARegeneration
BHibernation
CMetamorphosis
DMigration only
What term describes a symbiotic relationship between two different species in which one organism benefits at the direct expense or harm of the other?
AMutualism
BCooperation only
CCommensalism
DParasitism
What term describes a symbiotic relationship between two different species in which one organism benefits while the other is neither significantly helped nor harmed?
AMutualism
BParasitism
CPredation only
DCommensalism
What term describes the complex, interconnected network formed by multiple overlapping food chains within a given ecosystem?
AFood chain
BNitrogen cycle
CFood web
DWater cycle only
What term describes the process by which certain toxic substances become increasingly concentrated in the tissues of organisms at progressively higher levels of a food chain?
ABiomagnification
BFermentation only
CPhotosynthesis only
DBiodegradation
What term describes a body structure that has become significantly reduced or largely lost its original function over the course of evolution, often cited as evidence of an organism’s evolutionary history?
AA mutation only
BAn adaptation only
CA dominant trait
DA vestigial structure
In biology, what general term describes an inherited trait that helps an organism survive and successfully reproduce within its particular environment?
AA pathogen only
BA vestigial structure
CA mutation
DAn adaptation
What general term describes a condition resulting from a diet that lacks proper balance, whether through nutrient deficiency, excess, or imbalance?
AMalnutrition
BAbsorption only
CDigestion
DMetabolism