Exam 26: The Colonization of Land by Plants and Fungi

In onions (Allium), cells of the sporophyte have 16 chromosomes within each nucleus. Match the number of chromosomes present in each of the following onion tissues. -How many chromosomes should be in an embryo nucleus?

What is true of stamens, sepals, petals, carpels, and pinecone scales?

Which of the following is true of seedless vascular plants?

The next few questions refer to the following description. Match the animal features with the appropriate angiosperm analog. Oviparous (egg-laying) animals have internal fertilization (sperm cells encounter eggs within the female's body). Yolk and/or albumen is (are) provided to the embryo, and a shell is then deposited around the embryo and its food source. Eggs are subsequently deposited in an environment that promotes their further development, or are incubated by one or both parents. -The internal fertilization that occurs prior to shell deposition is what type of angiosperm analog?

The functional role of sporopollenin is primarily to

In both lichens and mycorrhizae, what does the fungal partner provide to its photosynthetic partner?

Figure 26.2 depicts the outline of a large fairy ring that has appeared overnight in an open meadow, as viewed from above. The fairy ring represents the furthest advance of this mycelium through the soil. Locations A-D are all 0.5 meters below the soil surface. Responses may be used once, more than once, or not at all. Figure 26.2 -What is the most probable location of the oldest portion of this mycelium?

A fruit is usually

Sporophylls can be found in which of the following?

The following are all adaptations in plants to life on land except

Assuming that they all belong to the same plant, arrange the following structures from largest to smallest. 1. antheridia 2) gametes 3) gametophytes 4) gametangia

Which of the following sex and generation combinations most directly produces the megasporangium of pine ovules?

The harpy eagle, Harpia harpyja, is the largest, most powerful raptor in the Americas. It nests only in trees taller than 25 meters. It is a "sloth specialist," but will also take agouti. Thus, if these eagles capture too many agoutis from a particular locale, they might contribute to their own demise by

Gymnosperms differ from both extinct and extant (living) ferns because they

Figure 26.2 depicts the outline of a large fairy ring that has appeared overnight in an open meadow, as viewed from above. The fairy ring represents the furthest advance of this mycelium through the soil. Locations A-D are all 0.5 meters below the soil surface. Responses may be used once, more than once, or not at all. Figure 26.2 -Assume that all four locations are 0.5 m above the surface. On a breezy day with prevailing winds blowing from left to right, where should one expect to find the highest concentration of free basidiospores in an air sample?

Among the organisms listed here, which are thought to be the closest relatives of fungi?

Which of the following sex and generation combinations most directly produces the pollen tube?

The seed coat's most important function is to provide

In most fungi, karyogamy does not immediately follow plasmogamy, which consequently

The vegetative (nutritionally active) bodies of most fungi are