Plants Intro and Life Cycle Flashcards
Before plants everything was in what?
water
what were the benefits of living on land?
- more light
- more air
3 no predators yet
what were the consequences of living on land
- quicker desiccation
- gravity has a bigger effect
where do plants come from?
an offshoot of green algea
what is the group called that combines green algae and plants
vividiplente
what are the shared traits of green algae and plants
multicellular organisms
autotrophs using chloroplasts
trees are built with what?
derived traits
what lifestyle separates plants from green algae
terrestrial lifestyle
what are the derived traits of plants
- sporopollen encasing spores
- alternation of generation
- multicellular gametangia
- maternal care
- apical meristem
example of sporopollen encasing spores
pollen
alternating multicellular diploid and haploid generation
alternation of generation
dedicated structure in gametophyte to produce “sperm and egg”
gametangia
growing from tips of branches and roots
apical meristem
what are gametangla?
structures in the gametophyte
what is the benefits of a vascular system
made things go faster