ALTERNATION OF GENERATIONS

AND AN INTRODUCTION TO MOSSES

A WEBQUEST

Here are links to the definitions of some needed to know during this activity. Use them as needed:

Morphologically

Substrate

Holdfast

Bryophyte

Motile

Germinate

Use this link to answer the following questions:

View the animation and read the text along with it.

http://wps.prenhall.com/wps/media/objects/488/499858/CDA27_1/CDA27_1a/CDA27_1a.htm

1. Briefly describe what happens during the alternation of generations life cycle:
2. In Ulva, does Meiosis produce spores or gametes?
3. How are the Sea Lettuce that grows from a spore different from the Sea Lettuce that grows from a zygote?

Use this link to answer the following question:

http://www.backyardnature.net/mosses.htm

4. List 3 places mosses are typically found.

Use this link to answer the following questions:

http://faculty.fmcc.suny.edu/mcdarby/Animals&PlantsBook/Plants/02-Primitive-Land-Plants.htm

5. Why was it a struggle for plants to move onto land?
6. What do mosses (also called bryophytes) lack that has made vascular plants so much more successful on land?
7. Why is a moss limited to how tall it can be?
8. What adaptations have mosses made to overcome the struggles of living on land?