1816963
Descripción
Test por Beth Moore, actualizado hace más de 1 año
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Creado por Beth Moore
hace más de 9 años
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Pregunta 1
Pregunta
How many species of angiosperm are there?
Respuesta
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2,500
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50,000
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250,000
-
25,000
Pregunta 2
Pregunta
Which are part of the vegetative plant body?
Respuesta
-
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
Pregunta 3
Pregunta
When did angiosperms first arise?
Respuesta
-
Devonian
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Cretacious
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Triassic
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Permian
Pregunta 4
Pregunta
Which of the following is a sister clade to the angiosperms?
Respuesta
-
Bryophytes
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Gymnosperms
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Ferns
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Sphenopsids
Pregunta 5
Pregunta
How many seed leaves do Eudicots have?
Respuesta
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1
-
2
-
3
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4
Pregunta 6
Pregunta
Which of the following are Monocots?
Respuesta
-
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
Pregunta 7
Pregunta
Which of the following are characteristic of monocots?
Respuesta
-
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
Pregunta 8
Pregunta
What is the function of the synergids?
Respuesta
-
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
Pregunta 9
Pregunta
What fraction of the endosperm is paternal?
Respuesta
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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
Pregunta 10
Pregunta
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?
Respuesta
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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
Pregunta 11
Pregunta
In angiosperms the male gametophyte consists of a tube nucleus and a generative nucleus?
Respuesta
- True
- False
Pregunta 12
Pregunta
Which of these is not a signal to break dormancy in some angiosperms?
Respuesta
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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
Pregunta 13
Pregunta
Imbibition is involved in seed germination?
Respuesta
- True
- False
Pregunta 14
Pregunta
Which of the following means dispersal by wind?
Respuesta
-
Anemochory
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Zoochory
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Hydrochory
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Autochory
Pregunta 15
Pregunta
Which of the following is not a benefit of seed dormancy?
Respuesta
-
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
Pregunta 16
Pregunta
How is fitness measured ?
Respuesta
-
Seed number x Seed Mass
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Seed Mass x Offspring survival
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Seed number x Offspring survival
Pregunta 17
Pregunta
Which of the following are benefits to having large seeds?
Respuesta
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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
Pregunta 18
Pregunta
Which size seed is more beneficial in favourable environments?
Respuesta
-
Small
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Large
Pregunta 19
Pregunta
How does camelina sativa var. linicola display Valivovian mimicry in relation to flax seeds?
Respuesta
-
It has the same colour seed
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It has the same sized seeds
Pregunta 20
Pregunta
True or false? You would expect two identical plants sharing the same soil to increase root mass compared to seed mass?
Respuesta
- True
- False
Pregunta 21
Pregunta
True or false? An iteroparous species only reproduces once before death.
Respuesta
- True
- False
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