Exam 21: The Evolution of Plants

The male and female flowers of a newly discovered tomato species are arranged in a way that minimizes the chance of self-pollination and encourages wind pollination.It is most likely that male flowers of this species would be found _______ and fruit-producing female flowers would be found _______.

A newly discovered fossil layer shows evidence that conifers and cycads flourished when the fossils were laid down.Below this layer there are no conifers or cycads.These fossils were most likely made during the

Coniferous gymnosperms such as pines depend primarily on _______ for pollination;thus,the plants produce large quantities of pollen that disperse over large areas during the spring.

The waxy coating on leaves that reduces evaporation of water from the plant body is called the _______.

In some plants,the gametophyte is free-living and photosynthetic.Which group does not have a free-living gametophyte generation?

Within vascular plants,the large,prominent plant is the _______;in nonvascular plants it is the _______.

The corolla and the calyx have a role in

The angiosperms are the sister to which group?

Approximately _______ species of moss (Bryophyta)have been described.

Conifers

The 12,000 species of ferns

One difference between gymnosperms and angiosperms is that gymnosperms

The first vascular plants were probably

The cyanobacteria found in the internal mucilage-filled cavities of the hornworts serve to

Which characteristic is not shared by the club mosses and the horsetails?

A universal feature of the life cycles of land plants is

Which of the following are synapomorphies for both gymnosperms and angiosperms?

Which seed plants have swimming (motile)sperm?

From an evolutionary standpoint,pollen is a

The flowers of a new kind of tropical vine are bright scarlet in color but are not highly scented.These plants are most likely pollinated by