BIO 370 Final Exam Question and
answers rated A+ 2025/2026
Trionychidae - correct answer ✔sit and wait snout breathers
Testudinidae - correct answer ✔large herbivores adapted to dry conditions
Chelidae - correct answer ✔non-cryptodires from the southern hemisphere
Chelydridae - correct answer ✔nocturnal, sharp-beaked predators
symplesiomorphy - correct answer ✔shared ancestral trait
unshared ancestral trait - correct answer ✔No term to describe this non-sensical category
Synapomorphy - correct answer ✔shared derived trait
Autapomorphy - correct answer ✔unique derived trait
Gekkota - correct answer ✔synapomorphy: no eyelids or rod cells in the retina
Serpentes - correct answer ✔synapomorphy: obligate limblessness
Anguimorpha - correct answer ✔synapomorphy:: venomous but some quadrupedal
, Iguania - correct answer ✔synapomorphy: quadrupedal and non-venomous
Jaw morphology with their proper feeding mode in squamates: absence of upper and lower skull arches
- correct answer ✔Most flexible gape; capable of jaw dislocation to consume large prey
secondarily fused and exaggerated skull bones - correct answer ✔most limited gape for feeding, thus
eat smallest-sized prey
low of lower skull arch - correct answer ✔2nd most flexible gape for feeding
ancient condition - upper and lower arches present - correct answer ✔2nd most limited gape for
feeding
Birds are the lone extant archosaurian lineage with a four-chambered heart.
True
False - correct answer ✔False
Limblessness has evolved in several reptile lineages, but for which squamate taxon is absence of limbs a
conserved feature of the group?
A.Serpentes
B.Lacertoidea
C.Anguimorpha
D.Rhynchocephalia
E.Amphisbaenia - correct answer ✔C.Anguimorpha
An extant diurnal endothermic reptile with comparatively large eyes and limited olfactory capability
would be predicted to be in the Family Sphenodontidae.
answers rated A+ 2025/2026
Trionychidae - correct answer ✔sit and wait snout breathers
Testudinidae - correct answer ✔large herbivores adapted to dry conditions
Chelidae - correct answer ✔non-cryptodires from the southern hemisphere
Chelydridae - correct answer ✔nocturnal, sharp-beaked predators
symplesiomorphy - correct answer ✔shared ancestral trait
unshared ancestral trait - correct answer ✔No term to describe this non-sensical category
Synapomorphy - correct answer ✔shared derived trait
Autapomorphy - correct answer ✔unique derived trait
Gekkota - correct answer ✔synapomorphy: no eyelids or rod cells in the retina
Serpentes - correct answer ✔synapomorphy: obligate limblessness
Anguimorpha - correct answer ✔synapomorphy:: venomous but some quadrupedal
, Iguania - correct answer ✔synapomorphy: quadrupedal and non-venomous
Jaw morphology with their proper feeding mode in squamates: absence of upper and lower skull arches
- correct answer ✔Most flexible gape; capable of jaw dislocation to consume large prey
secondarily fused and exaggerated skull bones - correct answer ✔most limited gape for feeding, thus
eat smallest-sized prey
low of lower skull arch - correct answer ✔2nd most flexible gape for feeding
ancient condition - upper and lower arches present - correct answer ✔2nd most limited gape for
feeding
Birds are the lone extant archosaurian lineage with a four-chambered heart.
True
False - correct answer ✔False
Limblessness has evolved in several reptile lineages, but for which squamate taxon is absence of limbs a
conserved feature of the group?
A.Serpentes
B.Lacertoidea
C.Anguimorpha
D.Rhynchocephalia
E.Amphisbaenia - correct answer ✔C.Anguimorpha
An extant diurnal endothermic reptile with comparatively large eyes and limited olfactory capability
would be predicted to be in the Family Sphenodontidae.
