Test
Angiosperms
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Preguntas del test (21)
1How many species of angiosperm are there?
- A2,500
- B50,000
- C250,000
- D25,000
2Which are part of the vegetative plant body?
- ALeaves
- BSepals
- CRoots
- DStem
- EStamen
- FCarpel
3When did angiosperms first arise?
- ADevonian
- BCretacious
- CTriassic
- DPermian
4Which of the following is a sister clade to the angiosperms?
- ABryophytes
- BGymnosperms
- CFerns
- DSphenopsids
5How many seed leaves do Eudicots have?
- A1
- B2
- C3
- D4
6Which of the following are Monocots?
- ALillies
- BDaises
- CGrasses
- DOrchids
- ECacti
- FRoses
7Which of the following are characteristic of monocots?
- AParrallel vascular tissue
- BContinuous ring of xylem and phloem near stem surface
- CCambium
- DSingular seed leaf
- ETriplocate pollen grain
- FAdventitious root system
8What is the function of the synergids?
- ATo form a nutrient rich endosperm
- BTo guide to germ tube to the egg cell
- CThere is no known function
- DTo form the tough seed coat
9What fraction of the endosperm is paternal?
- A0
- B1/3
- C1/2
- D2/3
- E1
10Some plants use S-genes to prevent self-fertilisation. Which of the following could a pollen grain with the s-genes 'S2' and 'S6' fertilise?
- AS3 S4
- BS2 S3
- CS2 S6
- DS1 S6
- ES1 S4
11In angiosperms the male gametophyte consists of a tube nucleus and a generative nucleus?
- AVerdadero
- BFalso
12Which of these is not a signal to break dormancy in some angiosperms?
- AAuxin
- BGibberellins
- CLight
- DSalinity
- ETemperature
13Imbibition is involved in seed germination?
- AVerdadero
- BFalso
14Which of the following means dispersal by wind?
- AAnemochory
- BZoochory
- CHydrochory
- DAutochory
15Which of the following is not a benefit of seed dormancy?
- Areduces kin competition
- BAvoids unfavourable conditions
- CAllows dispersing agents time to act
- DGives the embryo more time to grow
16How is fitness measured ?
- ASeed number x Seed Mass
- BSeed Mass x Offspring survival
- CSeed number x Offspring survival
17Which of the following are benefits to having large seeds?
- AMore resources for embrypo
- BGreater stress tolerance
- CGreater fitness
- DAggressive early growth
18Which size seed is more beneficial in favourable environments?
- ASmall
- BLarge
19How does camelina sativa var. linicola display Valivovian mimicry in relation to flax seeds?
- AIt has the same colour seed
- BIt has the same sized seeds
20True or false? You would expect two identical plants sharing the same soil to increase root mass compared to seed mass?
- AVerdadero
- BFalso
21True or false? An iteroparous species only reproduces once before death.
- AVerdadero
- BFalso
Información
- Descripción
- Questions covering content from the three angiosperm lectures
- Autor
- Beth Moore
- Idioma
- English
- Visitas
- 131
- Etiquetas
- Valoración
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