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