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WMAN 224 Exam 1 questions well answered already passed
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WMAN 224 Exam 1 questions well answered already passed
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WMAN 224 Exam 1 questions wellanswered already passed
What concepts did Darwin bring to the table - correct answer ✔✔survival of the fittest, descent with
modification
bottleneck effect - correct answer ✔✔dramatic reduction in population size
founder effect - correct answer ✔✔change in allele frequencies due to migration of a species
what is true of natural selection - correct answer ✔✔its easier to subtract than add, and its easier to
modify than add
analogous characteristics - correct answer ✔✔derived independently, same function
homologous structures describe - correct answer ✔✔relatedness
symplesiomorphy - correct answer ✔✔shared primitive characteristics, traits unchanged from an
ancestor that are inherited
automorphy - correct answer ✔✔unique, derived traits
why is automorphy beneficial - correct answer ✔✔tells us lineage is different, cant link lineages
evolutionarily
synapomorphy - correct answer ✔✔shared, derived characteristic, traits different from an ancestor and
shared by 2 or more lineages
convergent evolution - correct answer ✔✔external forces create similar species and niches
, divergent evolution - correct answer ✔✔a single colonization event leads to divergent populations
species - correct answer ✔✔individuals that look similar, occupy the same niche, and interbreed
2 types of speciation mechanisms - correct answer ✔✔postzygotic, prezygotic
prezygotic barriers - correct answer ✔✔habitat isolation, temporal isolation, behavioral isolation,
mechanical isolation, gametic isolation
postzygotic barriers - correct answer ✔✔no offspring, offspring not viable, inbreeding
how many species have been described - correct answer ✔✔1.5 million
how many species not described - correct answer ✔✔2-100 million species
3 pieces of evidence of natural selection from grant and grant - correct answer ✔✔drosophilia
genotypes affected by climate, gene frequencies vary, natural selection is a causal agent
3 domains of life - correct answer ✔✔bacteria, archaea, eukarya
kingdoms - correct answer ✔✔animalia, plantae, fungi, protozoa, chromista
systematics - correct answer ✔✔study of diversification of life forms
True or false: Vertebrates make up a fraction of biodiversity - correct answer ✔✔True, around 4%
What makes a cordate - correct answer ✔✔notochord, dorsal hollow nerve chord, pharyngeal gill slits,
segmented muscular postanal tail, endostyle
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