Synergids and the egg cell come from what originally? 

What structures do mosses have that take the place of xylem? 

The is dominant in seedless vascular plants. 

What is the function of the generative nucleus in angiosperms? 

In bryophytes the sporophyte is nutritionally dependent on the gametophyte. 

The three primary parts of a leaf are epidermis, mesophyll, and veins. 

Organisms in phylum Pinophyta possess male and female cone structures. 

Match the events of meiosis I and II to their proper description

Match the below seaweed/kelp features to their description

Plants make up over 98% of biomass on Earth.