28. Plants

The development of the __________ prevents plants from drying out and protects them from microbes.

Which of the following statements about algae and plants is true?

Which of the following homologies is/are shared by land plants and their closest living algal relatives?

In moving to land, which of the following challenges did plants have to overcome?

Plants undergo alternation of generations in which __________.

Gametangia are __________.

In charophytes, __________ protect(s) zygotes from desiccation.

Which is a key difference between alternation of generations in plants and sexual reproduction in nonplant organisms?

Which term is most nearly synonymous with land plants?

A major division in plant systematics is based on whether a particular species has __________.

What structures allow plants to readily take up carbon dioxide from the atmosphere?

Heterosporous plants produce __________.

Ferns and mosses are limited mostly to moist environments because __________.

In this abbreviated diagram, identify the four major plant groups and the key terrestrial adaptation associated with each of the three major branch points.

Identify the cloud seen in each photograph. Describe the life cycle events associated with each cloud.

In angiosperms, which of the following is correctly paired with its chromosome count? (A)microspore—n (B)zygote—n (C)egg—2n (D)megaspore—2n

What is a pollen grain? a. male gametophyte b. female gametophyte c. male sporophyte d. sperm