Exam 27: Seedless Plants

Which plant has a jointed hollow stem with reduced megaphylls?

Prepare a table that lists the features that distinguish bryophytes from green algae and from other plants.

Heterospory is believed to have led to the evolution of:

The oldest known megafossils of early vascular plants may be characterized as:

Why are mosses and liverworts limited in size?

Figure 27-1 What is the structure labeled as A in the accompanying figure?

How are the sperm of moss transported to the archegonia?

Which of the following is heterosporous?

Identify and briefly describe the two phyla of seedless vascular plants. Include one or two representatives of each phylum.

After sexual reproduction in a moss, the ____ grows out of the gametophyte.

In plants, the fertilized egg develops into a multicellular ____ (young plant) within a female gametangium.

The gametophyte is the dominant stage in the life cycle for which of the following plant groups?

What is the most ancient group of plants alive today?

Which is the gametophyte form of most liverworts?

Some liverworts reproduce asexually by forming tiny balls of tissue called:

Microsporocytes divide by ____ to form ____.

If you were a paleontologist studying clams, you would have an easier research project than if you were studying early plants. Why? Include in your discussion the term megafossils.

Each archegonium produces many eggs . _____________________

____ are small leaves with a single vascular strand.