EK 01-02 PLANT POPULATIONS

Which features of the population is expressed the number of individuals on a square unit – on 1 m2 or1 hectare
1. density
2. migration
3. imission
thickness or
1. density
2. opasity
3. identity
fertility or
1. natality
2. mortality
3. density
Which feature expresses natural grow ability of certain population?
1. natality
2. mortality
3. density
death rate
1. mortality
2. natality
3. density
Density depends on
1. size of plants
2. number of plants
3. age of plants
Density appears
1. in the horizontal structure of the population
2. in the vertical structure of the population
What does not belong to vegetative spreading of plant populations?
1. posterity connected with leaves
2. posterity connected with rootstocks
3. posterity connected with offshoots
An example of posterity connected with offshoots can be
1. strawberry
2. couch-grass
3. fern
A configuration of individuals, which grow on one habitat is called
1. population
2. ecosystem
3. niche