1816963
Beschreibung
Quiz von Beth Moore, aktualisiert more than 1 year ago
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Erstellt von Beth Moore
vor fast 10 Jahre
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Frage 1
Frage
How many species of angiosperm are there?
Antworten
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2,500
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50,000
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250,000
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25,000
Frage 2
Frage
Which are part of the vegetative plant body?
Antworten
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Leaves
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Sepals
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Roots
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Stem
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Stamen
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Carpel
Frage 3
Frage
When did angiosperms first arise?
Antworten
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Devonian
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Cretacious
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Triassic
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Permian
Frage 4
Frage
Which of the following is a sister clade to the angiosperms?
Antworten
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Bryophytes
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Gymnosperms
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Ferns
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Sphenopsids
Frage 5
Frage
How many seed leaves do Eudicots have?
Antworten
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1
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2
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3
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4
Frage 6
Frage
Which of the following are Monocots?
Antworten
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Lillies
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Daises
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Grasses
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Orchids
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Cacti
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Roses
Frage 7
Frage
Which of the following are characteristic of monocots?
Antworten
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Parrallel vascular tissue
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Continuous ring of xylem and phloem near stem surface
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Cambium
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Singular seed leaf
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Triplocate pollen grain
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Adventitious root system
Frage 8
Frage
What is the function of the synergids?
Antworten
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To form a nutrient rich endosperm
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To guide to germ tube to the egg cell
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There is no known function
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To form the tough seed coat
Frage 9
Frage
What fraction of the endosperm is paternal?
Antworten
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0
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1/3
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1/2
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2/3
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1
Frage 10
Frage
Some plants use S-genes to prevent self-fertilisation. Which of the following could a pollen grain with the s-genes 'S2' and 'S6' fertilise?
Antworten
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S3 S4
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S2 S3
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S2 S6
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S1 S6
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S1 S4
Frage 11
Frage
In angiosperms the male gametophyte consists of a tube nucleus and a generative nucleus?
Antworten
- True
- False
Frage 12
Frage
Which of these is not a signal to break dormancy in some angiosperms?
Antworten
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Auxin
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Gibberellins
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Light
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Salinity
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Temperature
Frage 13
Frage
Imbibition is involved in seed germination?
Antworten
- True
- False
Frage 14
Frage
Which of the following means dispersal by wind?
Antworten
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Anemochory
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Zoochory
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Hydrochory
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Autochory
Frage 15
Frage
Which of the following is not a benefit of seed dormancy?
Antworten
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reduces kin competition
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Avoids unfavourable conditions
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Allows dispersing agents time to act
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Gives the embryo more time to grow
Frage 16
Frage
How is fitness measured ?
Antworten
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Seed number x Seed Mass
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Seed Mass x Offspring survival
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Seed number x Offspring survival
Frage 17
Frage
Which of the following are benefits to having large seeds?
Antworten
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More resources for embrypo
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Greater stress tolerance
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Greater fitness
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Aggressive early growth
Frage 18
Frage
Which size seed is more beneficial in favourable environments?
Antworten
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Small
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Large
Frage 19
Frage
How does camelina sativa var. linicola display Valivovian mimicry in relation to flax seeds?
Antworten
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It has the same colour seed
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It has the same sized seeds
Frage 20
Frage
True or false? You would expect two identical plants sharing the same soil to increase root mass compared to seed mass?
Antworten
- True
- False
Frage 21
Frage
True or false? An iteroparous species only reproduces once before death.
Antworten
- True
- False
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