Exam 28: The Evolution of Seed Plants

All seed plants

When strolling through a botanical garden, you come upon an area full of plants that have cones and needlelike leaves.This section of the botanical garden is dedicated to the

Pollen is found only in seed-producing vascular plants.What role did pollen play in vascular plant evolution? Is pollen a sporophyte or gametophyte?

The big showy flowers of a hibiscus function to attract pollinators, while the production of _______ is involved in seed dispersal.

A scientist finds a fossil plant that pushes back the origins of a reproductive structure that includes gametophytic tissue, stored macromolecules, and a tiny plant.This scientist has most likely discovered a fossil

A popcorn kernel is actually a seed encased in a thin layer of fruit.When you eat popcorn, the majority of what you are eating is _______, the tissue that stores nutrients for the embryo within the seed.

How have gymnosperms surmounted the obstacles that all plants faced when they began to colonize terrestrial environments?

The two major living groups of seed plants are the _______ and _______.

In a previously unknown aquatic, flowering plant that produces typical angiosperm flowers, two male haploid nuclei would be expected to play a role in

If a fungus were to kill off all extant seed plants with needlelike or scalelike leaves plus cones, it would eliminate

Which group of angiosperms is thought to contain the most primitive living members?

A flower is considered imperfect if _______ are absent.

Also known as seed leaves, _______ can digest endosperm, become photosynthetic, or do both.

There have been changes in the dominant vegetation since plants first invaded the terrestrial environment 400-500 mya.Which of the following shows groups in the correct order in which they were dominant, from earliest to most recent?

Refer to the figure. In the angiosperm life cycle shown, label the processes in the boxes, indicate the haploid and diploid generations, and label all of the structures indicated.

A newly discovered gymnosperm with palm- or fernlike leaves would most likely be a

The ovule consists of the

The most primitive living genus of flowering plants known today

A _______ contains tissue from three different generations.

The vasculature of angiosperms contains more derived cell types, for instance, vessel elements, fibers, and companion cells.Has this specialization resulted in greater success in angiosperms compared with gymnosperms? Justify your answer.