Estudo dirigido: Grado ANITA e Monocotiledôneas 1
Autor: Rafael Louzada | Publicado: 2013-03-05T16:04:00-03:00








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1. Cite
exemplos de espécies economicamente importantes, &nbsp;inseridas nas famílias e
ordens grado ANITA e o clado das magnolídeas.



2. Qual a
novidade evolutiva (sinapomorfia) que une o clado das magnolídeas?



3. Flores
trímeras em monocotiledôneas são consideradas&nbsp;por alguns autores&nbsp;sinapomorfias
homoplásticas&nbsp;por se tratar de um caráter que evoluiu independentemente
nas evolução das angiospermas. Com exceção das monocotiledôneas, quais outras famílias possuem esse caráter?



4. Cite
semelhanças e diferenças as flores das famílias Magnoliaceae e Annonaceae
(Magnoliales).



5. Presença de
hipanto, estaminódios e pólen inaperturado é uma novidade evolutiva que
caracteriza a ordem&nbsp; _________________.



6. Ovário
unicarpelar e anteras com abertura valvar são características da família
____________________.



7. A ordem
Piperales é característica por possuir plantas não lenhosas, isso devido a
ausência de ________________________. Além disso, a distribuição dos feixes
vasculares é do tipo_________________, assim como nas ___________________.



8. Qual a
principal novidade evolutiva das Monocotiledôneas?



9. A perda de
cambio vascular (responsável pelo crescimento secundário) aconteceu mais de uma vez na evolução das angiospermas, entre
os táxons que apresentam esse estado estão as _________________,
__________________ e Ceratophyllales.



10. Araceae,
pertencente à ordem Alismatales, é caracterizada por serem plantas herbáceas
com folhas dísticas e inflorescência em _________________, portanto uma bráctea
denominada ________________. Em algumas espécies a inflorescência é
_______________, ou seja as flores femininas abrem primeiro que as masculinas
como estratégia para evitar a __________________ e manter a variabilidade
genética das espécies.



11. Nas
Asparagales estão inseridas algumas famílias de grande potencial ornamental,
principalmente por apresentar o perianto ______________, frequentemente com
desenhos. A presença de _______________, na testa da semente é considerada uma
sinapomorfia da ordem, estando ausente apenas na família __________________.
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