Exam 22: Introduction to Seed Plants: Gymnosperms

Resins have a number of uses for human activities but are of no use to the plants that produce the resins.

Pine leaf fascicles (clusters) usually

Meiosis occurs in pines in the microsporangia and in the

Which of the following structures or features is/are a part of pine needles (leaves)?

With the exception of a few woody vines, the growth form of the gymnosperms are ________.

This is the largest group of living gymnosperms, comprising about 50 genera and 550 species.

Gnetophytes have vessels in their xylem.

A strobilus (pl. strobili) is ________.

In pines a pollen grain reaches the nucellus via the

Pollen grains of pines are brought through the microphyle onto the nucellus as the fluid from the micropyle evaporates.

Bald cypress trees, like redwoods, are very resistant to decay.

Vascular plants include both seed-producing and seedless groups. Which of the following represents a significant adaptive benefit for seed-producing plants?

Which of the following is favored for making archery bows and longbows?

The chief source of newsprint in North America is

The ginkgo is frequently mistaken for an angiosperm tree because ________.

Another term for the megasporangium is the nucellus.

The sporophylls of pines are usually spirally arranged in strobili.

A mature seed consists of the seed coat, nutritive tissue, and ________.

The seeds of ginkgoes have a fleshy covering and look plumlike.

Some gymnosperms produce only a single seed in their female cones.