©THEBRIGHT 2024/2025 ALL RIGHTS RESERVED 10:15AM A+
UCONN BIOL 1108 Exam 1 Questions And
Answers |Latest 2025 | Guaranteed Pass.
Phylogeny - Answer✔the history of descent with branching
node - Answer✔in phylogenetic trees, the point where a branch splits, representing the
common ancestor from which the descendant species diverged
nodes can be rotated without changing ________________________ - Answer✔evolutionary
relationships
phylogenetic trees - Answer✔provide hypotheses of evolutionary relationships
phylogenetics - Answer✔the study of evolutionary relationships among organisms
taxonomy - Answer✔the classification of organisms
phylogenetic tree - Answer✔a diagrammed hypothesis about the evolutionary history, or
phylogeny, of a species
a phylogenetic tree is a ______________________________ of the evolutionary relationships
among organisms - Answer✔reasoned hypothesis
the search for sister groups lies at the heart of _______________ - Answer✔phylogenetics
sister groups - Answer✔groups that are more closely related to each other than either of them
is to any other group
monophyletic group - Answer✔includes of a common ancestor and all of its descendants
taxon - Answer✔(plural, taxa) all the species in a taxonomic entity such as a family or genus
paraphyletic group - Answer✔includes a common ancestor and some, but not all, of its
descendants
polyphyletic group - Answer✔does not include the common ancestor
1
, ©THEBRIGHT 2024/2025 ALL RIGHTS RESERVED 10:15AM A+
taxonomic classifications are ________________________ and _______________________ -
Answer✔information storage, retrieval systems
classification hierarchy - Answer✔domain, kingdom, phylum, class, order, family, genus, species
three domains of life - Answer✔Eukarya, Bacteria, Archaea
homology is similarity by _____________________ - Answer✔common descent
characters - Answer✔the anatomical, physiological, or molecular features of an organism that
varies among closely related species
character states - Answer✔the observed condition of a character, such as presence or absence
of lungs or arrangement of petals
homologous - Answer✔characters that are similar because of descent from a common ancestor
analogous - Answer✔similarities due to independent adaptation by different species
shared derived characters enable biologists to reconstruct _______________________ -
Answer✔evolutionary history
synapomorphies - Answer✔shared derived characters
cladistics - Answer✔phylogenetic reconstruction on the basis of synapomorphies
the _________________ is often favored among multiple possible trees - Answer✔simplest
tree
parsimony - Answer✔choosing the simplest hypothesis to account for a given set of
observations
molecular data complement comparative morphology in reconstructing
________________________ - Answer✔phylogenetic history
phylogenetic trees can help solve ________________________ - Answer✔practical problems
_________________ provide unique information - Answer✔fossils
fossils provide a selective record of _______________ - Answer✔past life
trace fossils - Answer✔a track or trail, such as a dinosaur track or the feeding trails of snails and
trilobites, left by an animal as it moves about or burrows into sediments
molecular fossils - Answer✔sterols, bacterial lipids, and some pigment molecules, which are
relatively resistant to decomposition, that accumulate in sedimentary rocks and document
organisms that rarely form conventional fossils
2
UCONN BIOL 1108 Exam 1 Questions And
Answers |Latest 2025 | Guaranteed Pass.
Phylogeny - Answer✔the history of descent with branching
node - Answer✔in phylogenetic trees, the point where a branch splits, representing the
common ancestor from which the descendant species diverged
nodes can be rotated without changing ________________________ - Answer✔evolutionary
relationships
phylogenetic trees - Answer✔provide hypotheses of evolutionary relationships
phylogenetics - Answer✔the study of evolutionary relationships among organisms
taxonomy - Answer✔the classification of organisms
phylogenetic tree - Answer✔a diagrammed hypothesis about the evolutionary history, or
phylogeny, of a species
a phylogenetic tree is a ______________________________ of the evolutionary relationships
among organisms - Answer✔reasoned hypothesis
the search for sister groups lies at the heart of _______________ - Answer✔phylogenetics
sister groups - Answer✔groups that are more closely related to each other than either of them
is to any other group
monophyletic group - Answer✔includes of a common ancestor and all of its descendants
taxon - Answer✔(plural, taxa) all the species in a taxonomic entity such as a family or genus
paraphyletic group - Answer✔includes a common ancestor and some, but not all, of its
descendants
polyphyletic group - Answer✔does not include the common ancestor
1
, ©THEBRIGHT 2024/2025 ALL RIGHTS RESERVED 10:15AM A+
taxonomic classifications are ________________________ and _______________________ -
Answer✔information storage, retrieval systems
classification hierarchy - Answer✔domain, kingdom, phylum, class, order, family, genus, species
three domains of life - Answer✔Eukarya, Bacteria, Archaea
homology is similarity by _____________________ - Answer✔common descent
characters - Answer✔the anatomical, physiological, or molecular features of an organism that
varies among closely related species
character states - Answer✔the observed condition of a character, such as presence or absence
of lungs or arrangement of petals
homologous - Answer✔characters that are similar because of descent from a common ancestor
analogous - Answer✔similarities due to independent adaptation by different species
shared derived characters enable biologists to reconstruct _______________________ -
Answer✔evolutionary history
synapomorphies - Answer✔shared derived characters
cladistics - Answer✔phylogenetic reconstruction on the basis of synapomorphies
the _________________ is often favored among multiple possible trees - Answer✔simplest
tree
parsimony - Answer✔choosing the simplest hypothesis to account for a given set of
observations
molecular data complement comparative morphology in reconstructing
________________________ - Answer✔phylogenetic history
phylogenetic trees can help solve ________________________ - Answer✔practical problems
_________________ provide unique information - Answer✔fossils
fossils provide a selective record of _______________ - Answer✔past life
trace fossils - Answer✔a track or trail, such as a dinosaur track or the feeding trails of snails and
trilobites, left by an animal as it moves about or burrows into sediments
molecular fossils - Answer✔sterols, bacterial lipids, and some pigment molecules, which are
relatively resistant to decomposition, that accumulate in sedimentary rocks and document
organisms that rarely form conventional fossils
2
