Flashcards in Plant Tempo and Mode Deck (8)
What makes plants relatively simple organisms?
Only 40 cell types throughout kingdom, all have same basic needs.
What is the mode of life?
Essentially sedentary, but reproductive propagules can be dispersed great distance
What happens to plants during time of stress?
can regenerate later, regrow branches or even regenerate from roots and leaves
How do new species arise so readily in the plant kingdom?
Polyploidy is rife and and readily hybridize
What is Autopolyploidy?
abnormal cell division results in increase in number of copies of chromosomes
What is Allopolyploidy?
Hybridization occurs and offspring contain sets of chromosomes from both parents
What environmental conditions drive plant evolution?
Climate change, atmosphere composition, tectonic setting