Botany terms Exam 2 Questions and
Answers with Verified Solutions | Latest
Updated 2026
flower evolution: spiral fused parts
arrangement
went to
flower evolution: flowers with definite number of parts
multiple indefinite parts went to
flower evolution: superior ovary inferior ovary; more protection
went
to
flower evolution: actinomorphic zygomorphic; facilitates pollinators
the Triassic, Jurassic, and the Mesozoic
Cretaceous
period are known as what era?
the hot, swampy period in which Carboniferous
seed plants dominated
seed plants arose in which period Late Devonian
, the airy, cool, and dry period in Permian
which many seed tracheophytes
originated
the period in which cycads and Triassic
conifers dominated
in between which two periods was Jurassic and Cretaceous
there a mass extinction?
Angiosperms spread during which Cretaceous
period?
seed ferns went extinct during the Carboniferous period
a structure of seed plants that cupules
illustrates the seed development in
the fossil record (Elkinsia
polymorpha)
ploidy: a gametophyte is always haploid
ploidy: a sporophyte is always diploid
2 biggest derived adaptations of the ovule and pollen grain
gymnosperms?
a matured ovule containing an seed
embryo
Answers with Verified Solutions | Latest
Updated 2026
flower evolution: spiral fused parts
arrangement
went to
flower evolution: flowers with definite number of parts
multiple indefinite parts went to
flower evolution: superior ovary inferior ovary; more protection
went
to
flower evolution: actinomorphic zygomorphic; facilitates pollinators
the Triassic, Jurassic, and the Mesozoic
Cretaceous
period are known as what era?
the hot, swampy period in which Carboniferous
seed plants dominated
seed plants arose in which period Late Devonian
, the airy, cool, and dry period in Permian
which many seed tracheophytes
originated
the period in which cycads and Triassic
conifers dominated
in between which two periods was Jurassic and Cretaceous
there a mass extinction?
Angiosperms spread during which Cretaceous
period?
seed ferns went extinct during the Carboniferous period
a structure of seed plants that cupules
illustrates the seed development in
the fossil record (Elkinsia
polymorpha)
ploidy: a gametophyte is always haploid
ploidy: a sporophyte is always diploid
2 biggest derived adaptations of the ovule and pollen grain
gymnosperms?
a matured ovule containing an seed
embryo
