Exam 22: The Diversity of Plants

-You observe a 1- inch- tall plant in the woods. This plant is part of a mass of similar small plants covering an area of several square feet. It is very flexible and does not easily stand upright by itself. Upon examining the tiny, flat, leaflike structures of this plant, you see no veins. There is no evidence of seeds, but at the end of a little stalk on the tip of the plant, there is some sort of spore- bearing structure. This plant is probably a(n)

A complete lack of vascular tissue is characteristic of

In plants, the haploid, multicellular organism is the

Both plants and green algae store food as

A group containing all the descendants of the same common ancestor is known as a .

Ephedra, used by humans as a stimulant and appetite suppressant, is a member of the group of gymnosperms.

Fruit production requires precious resources. What important benefit does fruit provide?

Which of the following statements about the function of flowers is TRUE?

Which of the following are important reproductive adaptations that allow plants to inhabit terrestrial environments?

What methods do angiosperms use to disperse seed?

One function of the plant cuticle is to increase water uptake by roots.

Mosses produce large amounts of pollen.

The generation of a plant is haploid.

Green algae are assumed to be ancestors of plants because

A fruit is a

In flowering plants, a ripened ovary is known as a .

Plants provide us with a variety of goods. Which of the following is NOT provided by plants?

In nonvascular plants, sperm are formed in the archegonia by meiosis.

Most gymnosperms are pollinated by wind, whereas most angiosperms are pollinated by _ .

-Based on the evolutionary tree, the closest relatives of seed plants are the