Plant Evolution Flashcards
What are the ancestors of the Plantae?
Green algae (charophytes)
What are some examples of Bryophytes?
Liverworts, Hornworts, Mosses
What were the first plants after green algae?
Bryophytes
What were the second plants after bryophytes?
Seedless Vascular Plants
What are the 2 newest types of plants?
Gymnosperms & Angiosperms
What is an example of Charophytes adaptations?
Waxy Cuticles, protecting embryos within tissues
What do spores need to reproduce?
Water (sperm needs to travel through water to the egg)
What do seeds provide the embryo with?
Food and protection needed for a dry environment
What is the cuticle?
A waxy covering that prevents water loss
Why were non vascular plants smaller?
They lacked vascular tissue
What is an example of seedless vascular plants?
Ferns
Out of cuticle, vascular tissue and seeds, how many of these do gymnosperms have?
All of them
What are the differences between seeds and spores?
Seeds are better as they have a longer lifespan, spores have thinner walls and are more vulnerable
What are the most successful evolution of plant
Angiosperms
What is the key to the success of angiosperms?
They evolved fruit and flowers and animals eat the fruit and spread the seeds.