yes
yes
yes
yes
Because a seed is bigger than a spore so the plant already has kind of a "head start".
Butterflies
More dinosaurs were plant eaters than meat eaters. That is because there is more food for plant eaters than for meat eaters.
A plant cell. (which usually has more than one chloroplast) (and also, plants are eukaryotes)
There are more than one kind of cell. If it is an animal or bacteria cell, than the cell membrane separates it. If it is a plant cell, than the cell wall separates it. go to www.cellsalive.com for more on that
There are more angiosperms on Earth than any other kind of plant So the its likely to be around 80-95%
When a plant has more than the regular amount of chromosomes.
Not necessarily
A perennial lives for more than a year.Most plants in their natural habitats live far longer than a year. Few plants are adapted to die each year and not regrow. In North America many plants are classified as annual when they complete their life cycle and die within a year. A plant that lives more than a year are called perennials.