Nasal congestion can be treated by pseudoephedrine - a compound based on the chemical structure of ephedrine. Which of the following gymnosperm divisions can be used to produce this compound -Bryophyta -Cycadophyta -Ginkophyta. -Coniferophyta -Gnetophyta

What are Eustigmatophytes ? Why are they important? Their is the objective of Eustigmatophytes?

The rhizome of ferns like the one shown in the previous question, have a dictyostele vascular cylinder.  In your own words, what does this term mean and how does it differ from the protostele seen in the Lycophytes?

Draw a single moss plant, similar to the one shown. Be certain to show the gametophyte and the sporophyte. Now draw one without the sporophyte, showing only the gametophyte. The sporophytes usually have only a very brief life, and after they shed their spores, the gametophytes let them die.