Exam 30: Plant Diversity Ii: the Evolution of Seed Plants

The following questions refer to the generalized life cycle for land plants shown in Figure 30.1. Each number within a circle or square represents a specific plant or plant part, and each number over an arrow represents either meiosis, mitosis, or fertilization. Figure 30.1 -Arrange the following in the correct sequence, from earliest to most recent, in which these plant traits originated: 1. sporophyte dominance, gametophyte independence 2) sporophyte dominance, gametophyte dependence 3) gametophyte dominance, sporophyte dependence

The result of heterospory is

For the following questions, match the various structures of seed plants with the proper sex and generation (A-D) that most directly produces them. -integument of pine seed

For the following questions, match the various structures of seed plants with the proper sex and generation (A-D) that most directly produces them. -fruit

The following questions refer to the description below. 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. -Arrange the following structures from largest to smallest, assuming that they belong to two generations of the same angiosperm. 1. ovary 2) ovule 3) egg 4) carpel 5) embryo sac

The following questions refer to the generalized life cycle for land plants shown in Figure 30.1. Each number within a circle or square represents a specific plant or plant part, and each number over an arrow represents either meiosis, mitosis, or fertilization. Figure 30.1 -In seed plants, which part of a pollen grain has a function most like that of the seed coat?

For the following questions, match the adaptations of the various fruits below with the most likely means used by the fruit to disperse the seeds contained within the fruit (A-E). -The fruit is covered with spines or hooks.

The following questions refer to the description below. 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 generative cell of male angiosperm gametophytes is haploid. This cell divides to produce two haploid sperm cells. What type of cell division does the generative cell undergo to produce these sperm cells?

The following questions refer to the description below. The cycads, a mostly tropical phylum of gymnosperms, evolved about 300 million years ago and were dominant forms during the Age of the Dinosaurs. Though their sperm are flagellated, their ovules are pollinated by beetles. These beetles get nutrition (they eat pollen) and shelter from the microsporophylls. Upon visiting megasporophylls, the beetles transfer pollen to the exposed ovules. In cycads, pollen cones and seed cones are borne on different plants. Cycads synthesize neurotoxins, especially in the seeds, that are effective against most animals, including humans. -On the Pacific island of Guam, large herbivorous bats called "flying foxes" commonly feed on cycad seeds, a potent source of neurotoxins. The flying foxes do not visit male cones. Consequently, what should be True?

Which of the following most closely represents the male gametophyte of seed-bearing plants?

The following questions refer to the generalized life cycle for land plants shown in Figure 30.1. Each number within a circle or square represents a specific plant or plant part, and each number over an arrow represents either meiosis, mitosis, or fertilization. Figure 30.1 -Meiosis is most likely to be represented by which number(s)?

Which of the following can be found in gymnosperms?

For the following questions, match the adaptations of the various fruits below with the most likely means used by the fruit to disperse the seeds contained within the fruit (A-E). -The fruit is made of material high in calories.

Hypothetically, one of the major benefits of double fertilization in angiosperms is to

In onions (Allium), cells of the sporophyte have 16 chromosomes within each nucleus. Match the number of chromosomes present in each of the onion tissues listed below. -How many chromosomes should be in a tube cell nucleus?

A plant whose reproductive parts produce nectar is also most likely to

Over human history, which process has been most important in improving the features of plants that have long been used by humans as staple foods?

For the following questions, match the adaptations of the various fruits below with the most likely means used by the fruit to disperse the seeds contained within the fruit (A-E). -The fruit contains an air bubble.

The following questions refer to the description below. 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. -In flowering plants, meiosis occurs specifically in the

For the following questions, match the adaptations of the various fruits below with the most likely means used by the fruit to disperse the seeds contained within the fruit (A-E). -The fruit has a heavy weight and spheroidal shape.