UWL BIO 203 EXAM 1QUESTIONS &
ANSWERS (RATED A+)
1.5-1.17 million - ANSWERHow many species are there?
butterflies, flowering plants, vertabrates - ANSWERwhich species are well known?
morphospecies (Gestalt) - ANSWERif two things look different enough, they should
be considered different.....
convergence mimicry- Batesian Mimicry - ANSWERanimal avoids predation by
looking like another animal so it isn't eaten
bacteria, nematodes, fungi, mites - ANSWERwhich species are not well known
divergence - ANSWERgenetic drift or natural selections leading to populations being
different enough they no longer exchange genes
evolutionary species concept - ANSWERAn evolutionary species is a single lineage
of ancestor-descendant populations that maintains its identity from other such
lineages and that has its own evolutionary trajectory
homology - ANSWERcharacter similarity that results from common ancestry is called
what?
homoplasious - ANSWERdifferent lineages may evolve similar features
independently; these characters are called what?
Species share a common ancestor, and their traits reflect both that ancestry and
changes over time. - ANSWERBiologists assert that present-day diversity can be
explained by the theory of descent with modification. What does descent with
modification mean?
insects - ANSWERwhich species has the most eukaryotes?
good - ANSWERIs a higher diversity of plants and animals a good thing or a bad
thing?
biomimicry - ANSWERwhen engineers use structures and ideas from nature to
benefit humans
ex- velcro
morphology - ANSWERthe structure of an organism
, aristotle - ANSWERthe ancient Greeks called organisms either plants or animals
romans - ANSWERgrouped plants and animals into basic groups (cats, horses,
oaks); became known as genera (singular- genus)
taxonomy - ANSWERnaming of organisms
latin - ANSWERlanguage of scholars
linnaeus - ANSWERwho wanted to name and describe all known kinds of organisms
with a 12 word limit?
genus - ANSWERfirst word in a scientific name
specific epithet - ANSWERsecond word in a scientific names
-there are multiple regional names
-the same common name can apply to more than one species
-not all scientific literature is published in english - ANSWERadvantages to scientific
names
domain, kingdom, phylum, class, order, family, genus, species - ANSWERbiological
hierarchy (taxonomic categories)
systematics - ANSWER-how closely related species are to each other
-a common ancestor
-the time since divergance
convergence mimicry- Mullerian Mimicry - ANSWERanimals develop similar
appearances to protect them. Ex- one animal hates bumble bees so if an organism
resembles a bumble bee the animal will avoid it
sexual dimorphism - ANSWERanimals develop ridiculous traits in order to find a
mate
ontogeny - ANSWERtadpole--> frog
biological species - ANSWERpopulations of organisms that are compatible with one
another are considered to be of the same biological species
evolutionary species - ANSWER-any two individuals that can be traced to a common
ancestral lineage are considered to be the same species
-species must therefore be monophyletic
-morphological species and biological species concepts contribute to this
mutation, gene flow, natural selection, genetic drift, non- random mating -
ANSWERwhat mechanisms cause populations to change allele frequencies or form?
neutral - ANSWERare most mutations bad, neutral, or good?
ANSWERS (RATED A+)
1.5-1.17 million - ANSWERHow many species are there?
butterflies, flowering plants, vertabrates - ANSWERwhich species are well known?
morphospecies (Gestalt) - ANSWERif two things look different enough, they should
be considered different.....
convergence mimicry- Batesian Mimicry - ANSWERanimal avoids predation by
looking like another animal so it isn't eaten
bacteria, nematodes, fungi, mites - ANSWERwhich species are not well known
divergence - ANSWERgenetic drift or natural selections leading to populations being
different enough they no longer exchange genes
evolutionary species concept - ANSWERAn evolutionary species is a single lineage
of ancestor-descendant populations that maintains its identity from other such
lineages and that has its own evolutionary trajectory
homology - ANSWERcharacter similarity that results from common ancestry is called
what?
homoplasious - ANSWERdifferent lineages may evolve similar features
independently; these characters are called what?
Species share a common ancestor, and their traits reflect both that ancestry and
changes over time. - ANSWERBiologists assert that present-day diversity can be
explained by the theory of descent with modification. What does descent with
modification mean?
insects - ANSWERwhich species has the most eukaryotes?
good - ANSWERIs a higher diversity of plants and animals a good thing or a bad
thing?
biomimicry - ANSWERwhen engineers use structures and ideas from nature to
benefit humans
ex- velcro
morphology - ANSWERthe structure of an organism
, aristotle - ANSWERthe ancient Greeks called organisms either plants or animals
romans - ANSWERgrouped plants and animals into basic groups (cats, horses,
oaks); became known as genera (singular- genus)
taxonomy - ANSWERnaming of organisms
latin - ANSWERlanguage of scholars
linnaeus - ANSWERwho wanted to name and describe all known kinds of organisms
with a 12 word limit?
genus - ANSWERfirst word in a scientific name
specific epithet - ANSWERsecond word in a scientific names
-there are multiple regional names
-the same common name can apply to more than one species
-not all scientific literature is published in english - ANSWERadvantages to scientific
names
domain, kingdom, phylum, class, order, family, genus, species - ANSWERbiological
hierarchy (taxonomic categories)
systematics - ANSWER-how closely related species are to each other
-a common ancestor
-the time since divergance
convergence mimicry- Mullerian Mimicry - ANSWERanimals develop similar
appearances to protect them. Ex- one animal hates bumble bees so if an organism
resembles a bumble bee the animal will avoid it
sexual dimorphism - ANSWERanimals develop ridiculous traits in order to find a
mate
ontogeny - ANSWERtadpole--> frog
biological species - ANSWERpopulations of organisms that are compatible with one
another are considered to be of the same biological species
evolutionary species - ANSWER-any two individuals that can be traced to a common
ancestral lineage are considered to be the same species
-species must therefore be monophyletic
-morphological species and biological species concepts contribute to this
mutation, gene flow, natural selection, genetic drift, non- random mating -
ANSWERwhat mechanisms cause populations to change allele frequencies or form?
neutral - ANSWERare most mutations bad, neutral, or good?
