Bio ch 27

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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


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