Phylogeny (USABO) Exam Questions
& Answers (Grade A+)
Chytridiomycota (chytrids) -
correct answer ✅flagellated spores; fungi
Zygomycota (zygomycetes) -
correct answer ✅resistant zygosporangium as sexual stage; fungi
Glomeromycota (arbuscular mycorrhizal fungi) -
correct answer ✅arbuscular mycorrhizae formed with plants
Ascomycota (ascomycetes) -
correct answer ✅sexual spores (ascospores) borne internally in
sacs called asci; vast numbers of asexual spores (conidia) produced;
fungi
Basidiomycota (basidiomycetes) -
correct answer ✅elaborate fruiting body (basidiocarp) containing
many basidia that produce sexual spores (basidiospores)
Metazoa -
correct answer ✅clade of all monophyletic animals
, Phylogeny (USABO) Exam Questions
& Answers (Grade A+)
Eumetazoa -
correct answer ✅clade of animals with tissues; all animals except
for porifera
Bilateria -
correct answer ✅clade of animals with bilaterial symmetry and
the presence of three prominent germ layers
Deuterostomia -
correct answer ✅hemichordata; echinodermata; chordata
Ecdysozoa -
correct answer ✅nematoda and arthropoda -- secrete exoskelets
and molts (ecdysis)
Lophotrochozoa -
correct answer ✅platyhelminthes; syndermata; ectoprocta;
brachiopoda; mollusca; annelids -- crown of ciliated tentacles that
function in feeding; trochophore larva stage
Acoela -
correct answer ✅Neither Protostomy or Deuterostomy fate
& Answers (Grade A+)
Chytridiomycota (chytrids) -
correct answer ✅flagellated spores; fungi
Zygomycota (zygomycetes) -
correct answer ✅resistant zygosporangium as sexual stage; fungi
Glomeromycota (arbuscular mycorrhizal fungi) -
correct answer ✅arbuscular mycorrhizae formed with plants
Ascomycota (ascomycetes) -
correct answer ✅sexual spores (ascospores) borne internally in
sacs called asci; vast numbers of asexual spores (conidia) produced;
fungi
Basidiomycota (basidiomycetes) -
correct answer ✅elaborate fruiting body (basidiocarp) containing
many basidia that produce sexual spores (basidiospores)
Metazoa -
correct answer ✅clade of all monophyletic animals
, Phylogeny (USABO) Exam Questions
& Answers (Grade A+)
Eumetazoa -
correct answer ✅clade of animals with tissues; all animals except
for porifera
Bilateria -
correct answer ✅clade of animals with bilaterial symmetry and
the presence of three prominent germ layers
Deuterostomia -
correct answer ✅hemichordata; echinodermata; chordata
Ecdysozoa -
correct answer ✅nematoda and arthropoda -- secrete exoskelets
and molts (ecdysis)
Lophotrochozoa -
correct answer ✅platyhelminthes; syndermata; ectoprocta;
brachiopoda; mollusca; annelids -- crown of ciliated tentacles that
function in feeding; trochophore larva stage
Acoela -
correct answer ✅Neither Protostomy or Deuterostomy fate
