1816963
Descripción
Test por Beth Moore, actualizado hace más de 1 año
|
|
Creado por Beth Moore
hace casi 10 años
|
|
Pregunta 1
Pregunta
How many species of angiosperm are there?
Respuesta
-
2,500
-
50,000
-
250,000
-
25,000
Pregunta 2
Pregunta
Which are part of the vegetative plant body?
Respuesta
-
Leaves
-
Sepals
-
Roots
-
Stem
-
Stamen
-
Carpel
Pregunta 3
Pregunta
When did angiosperms first arise?
Respuesta
-
Devonian
-
Cretacious
-
Triassic
-
Permian
Pregunta 4
Pregunta
Which of the following is a sister clade to the angiosperms?
Respuesta
-
Bryophytes
-
Gymnosperms
-
Ferns
-
Sphenopsids
Pregunta 5
Pregunta
How many seed leaves do Eudicots have?
Respuesta
-
1
-
2
-
3
-
4
Pregunta 6
Pregunta
Which of the following are Monocots?
Respuesta
-
Lillies
-
Daises
-
Grasses
-
Orchids
-
Cacti
-
Roses
Pregunta 7
Pregunta
Which of the following are characteristic of monocots?
Respuesta
-
Parrallel vascular tissue
-
Continuous ring of xylem and phloem near stem surface
-
Cambium
-
Singular seed leaf
-
Triplocate pollen grain
-
Adventitious root system
Pregunta 8
Pregunta
What is the function of the synergids?
Respuesta
-
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
Pregunta 9
Pregunta
What fraction of the endosperm is paternal?
Respuesta
-
0
-
1/3
-
1/2
-
2/3
-
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
-
S3 S4
-
S2 S3
-
S2 S6
-
S1 S6
-
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
-
Auxin
-
Gibberellins
-
Light
-
Salinity
-
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
-
Zoochory
-
Hydrochory
-
Autochory
Pregunta 15
Pregunta
Which of the following is not a benefit of seed dormancy?
Respuesta
-
reduces kin competition
-
Avoids unfavourable conditions
-
Allows dispersing agents time to act
-
Gives the embryo more time to grow
Pregunta 16
Pregunta
How is fitness measured ?
Respuesta
-
Seed number x Seed Mass
-
Seed Mass x Offspring survival
-
Seed number x Offspring survival
Pregunta 17
Pregunta
Which of the following are benefits to having large seeds?
Respuesta
-
More resources for embrypo
-
Greater stress tolerance
-
Greater fitness
-
Aggressive early growth
Pregunta 18
Pregunta
Which size seed is more beneficial in favourable environments?
Respuesta
-
Small
-
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
-
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
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.