Bio ch 27
A megaphyll
A leaf that arose from a branch system
Lignin
A strengthening compound found in cell walls of vascular plants
Stomata
Allow gas exchange for PNS
Plants probably descended from a group of green algae called
Charophytes
Not true about ferns
Ferns are the most economically important group of bryophytes
Plants that have hollow, jointed stems that are impregnated with silica
Horsetails
The bryophytes
Include mosses, liverworts, hornworts and are small plants that lack a vascular system
The green gametangia-bearing moss plant
Is the haploid gametophyte generation
In plant life cycles
The first stage in the diploid sporophyte generation is the zygote
Cuticle
The waxy layer that covers aerial parts of plants
Not a characteristic of a plant
Unicellular gametangia
Plants that have vascularizing stems but lack the roots and leaves
Wish ferns