12) Which factor is the most important in producing the variability that occurs
ID: 281324 • Letter: 1
Question
12) Which factor is the most important in producing the variability that occurs in each generation of humans? a) Diploidy c) Genetic drift 13) Variety of genotvpes and phenotvpes in a population gives rise to a) uniformity b) diversity c) consistency d) none of the above 14) The most probable reason why dinosaurs became extinct is that they a) were killed by erupting volcanoes b) were eaten by the advancing mammalian groups c) failed to adapt to a changing environment d) killed each other in combat 15) Each cell in the body is surrounded by a fluid called lymph. The most reasonable inference that can be drawn from this fact is that a) cells can live in plain water c) liquid food is the best d) 16) The next higher taxonomic category above a family is a) subclass b) genus c) order d) class 17) Which classification represent a higher taxonomic level than the kingdom system? a) Genus, class, order, kingdom, phylum, species, family b) Class, genus, family, species, order, c) Bacteria, archaea, and eukarya d) Genus and species e) Family, class, and order b) Genetic recombination (crossing-over) d) Non-random mating b) life may have begun in the sea lymph is identical to sea water phylum, kingdomExplanation / Answer
12. Genetic recombination
13. Diversity
14. Failed to adapt to changing enviornment.
15. Life may have begun in sea
16. Order
17. Bacteria, archae and eukarya
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