Angiosperms Flashcards

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1
Q

what do phylogenetic trees show?

A

evolutionary history and current relationships, inferred using modern analytical tools

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2
Q

what do we assume about mutations?

A

that theyre fixed at different rates, using this grade of change we can look at relationships between species and date when things diverged

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3
Q

life cycle of an angiosperm?

A

anther produces pollen
transferred to stigma where in develops into a pollen tube carrying two sperm
one fertilises the nucleus producing the zygote
the other triggers the endosperm

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4
Q

what is special about the endosperm?

A

only lasts while theres a seed - source of nutrition

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5
Q

difference between mono and dicots in terms of seeds?

A

monocots had one initial seed

dicots had two

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6
Q

whats special about nomenclature of plants?

A

includes reference to the author

strict regulation

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7
Q

when did photosynthesis originate?

A

2bya

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8
Q

when did eukaryotes originate?

A

1.5-0.9 bya

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9
Q

when did land and flowering plants originate?

A

438mya

246-144mya

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10
Q

what else is included in plant book collections?

A

dried ones, finder and where it was collected

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11
Q

what does the fibonacci sequence have to do with flowers

A

why flower petals occur in 3, 4, 5s

optimal packing

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