Seeds Flashcards
Is seed size dependent on sucess?
No
What is the issue with having large seed?
Make dispersal difficult
What determines seed size and number?
Parental investment
Whenis it beneficial to have large seed?
In stressful environments
What are the benefits of a large seed?
Lots of resources, per seed, can emerge from a greater depth and aggressive early growth
What are the benefits of a small seed?
Mass production, more offspring produced, more chances for survival
How may competition affect seed size?
May invest more into roots than in seeds if lots of competition
How is seed size plastic?
Determined by many factors, size of parent, form, dispersal mode,
What are the different dispersal modes?
Anemochory - by wind
Hydrochory - by water
Zoochory - by animals
Autochory - by the plant
Why are seeds dispersed?
Reduce competition, avoid inbreeding and exploit new habitats
What is endozoochory?
Inside an animal
What is epizoochory?
On the animal
What are the key life events of an angiosperm?
Seed dispersal Seed dormancy Germination Pollination Fertilisation Seed formation
