1) Why do traits that no longer serve a purpose sometimes persist in species? a) et change in organisms or a population over many generations b) . Sudden transformation of species within a single generation c) The preservation of identical traits without change d) The creation of new species by human intervention only 2) Which molecule is described as the blueprint of all life in the video? a) RNA b) Protein c) DNA d) Lipids 3) What process creates unique gene combinations during reproduction? a) Mutation b) Recombination c) Natural Selection d) Genetic Drift 4) What role do mutations play in evolution according to the video? a) They always cause harmful diseases b) They directly select which traits survive c) They ensure organisms do not change over time d) hey create new traits or modify existing ones, with most being neutral 5) How does natural selection influence a population? a) It favours traits that increase survival and reproduction b) It randomly changes genes without regard to survival c) It always causes diseases to be eliminated immediately d) t creates entirely new species instantly 6) What is artificial selection as described in the video? a) Random changes in gene frequency due to chance b) Natural environmental pressures selecting traits c) Mutation caused by environmental radiation d) Humans selecting traits in organisms to breed for desired features 7) What is genetic drift and how does it affect populations? a) The process of gene swapping during reproduction b) Selection of traits beneficial for survival c) Random changes in gene frequencies due to chance events d) Mutations that cause new traits 8) How does speciation occur according to the video's explanation? a) Immediate transformation into a new species without change b) Through long-term genetic changes and reproductive separation leading to distinct species c) By one species completely eliminating the old species d) Only through human intervention and breeding 9) Why do traits that no longer serve a purpose sometimes persist in species? a) Because mutation constantly recreates useless traits b) Because natural selection is always perfect in eliminating useless traits c) Because these traits aren’t actively selected against unless they hinder survival d) Because they help the organism in reproduction 10) What example does the video give of speciation in action? a) Darwin’s finches evolving into 15 different species on the Galapagos Islands b) Dogs evolving from wolves in a single generation c) Bacteria transforming instantly into multicellular organisms d) Insects growing smaller because of predators without genetic change

Darwin's Theory of Natural Selection

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