Exam 29: Seed Plants

An embryo sporophyte surrounded by nutritive tissue and a tough, protective outer coating makes up a(n)____. ​

In pines, the mature male gametophyte is called the ____.

The immature male gametophyte of seed plants is called a(n)____.

Darwin referred to the evolutionary origin of angiosperms as an "abominable mystery," because they seem to appear suddenly in the fossil record.

In seed plants, the transfer of immature male gametophytes to female reproductive parts is a process called ____. ​

Seed plants as a whole belong to a nontaxonomic grouping called the ____. ​

One advantage of angiosperm seeds is the presence of seed ____, a nutritive tissue produced during fertilization that nourishes the developing embryo. ​

In the life cycle of a flowering plant, a single megaspore undergoes cytokinesis producing a female gametophyte that consists of ____ cells.

The ____ phylum has about 185 known living species of vascular, seed-bearing plants. Many of them look like palm trees, and some produce massive strobili, with male and female strobili found on separate plants. ​

Which group of plants has the smallest gametophytes? ​

Various cycad tissues produce ____, which may help deter predatory insects. ​

Which genetic mechanism is most likely responsible for the evolutionary origin of new and complex plant structures, such as flowers?

Which floral structure is a female reproductive part? ​

The oldest well-documented flowering plant fossils date to about ____ years ago. ​

If you see a yellow flower with "nectar guide" stripes and a strong, sweet odor, it is likely pollinated by ____. ​