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

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

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 internal fertilization that occurs prior to shell deposition

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. -What adaptations should one expect of the seed coats of angiosperm species whose seeds are dispersed by frugivorous (fruit-eating)animals, as opposed to angiosperm species whose seeds are dispersed by other means? 1) The exterior of the seed coat should have barbs or hooks. 2) The seed coat should contain secondary compounds that irritate the lining of the animal's mouth. 3) The seed coat should be able to withstand low pH's. 4) The seed coat, upon its complete digestion, should provide vitamins or nutrients to animals. 5) The seed coat should be resistant to the animals' digestive enzymes.

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. -Reptilian embryos are protected from desiccation by a leathery shell. Similarly, which pair of structures protects seed plants' embryos and male gametophytes, respectively, from desiccation?

Suppose that the cells of seed plants, like the skin cells of humans, produce a pigment upon increased exposure to UV radiation. Rank the cells below, from greatest to least, in terms of the likelihood of producing this pigment. 1. cells of sporangium 2) cells in the interior of a subterranean root 3) epidermal cells of sporophyte megaphylls 4) cells of a gametophyte

Which of these statements correctly describes a portion of the pine life cycle?

Which of the following flower parts develops into a seed?

A fruit is most commonly

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. -Angiosperm double fertilization is so-called because it features the formation of

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. -If the beetles survive by consuming cycad pollen, then whether the beetles should be considered mutualists with, or parasites of, the cycads depends upon

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. -Which is a True statement about angiosperm carpels?

Similar to cacti and euphorbs, conifers often have leaves that are modified into a needle-like shape-an adaptation to arid environments. Yet, the taiga bioprovince of the northern hemisphere and the slopes of mountain ranges receive plenty of annual precipitation and have dense conifer forests. In what way are such environments able to account for the presence of trees whose leaves are adapted to arid conditions?

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. -Which of these statements is True of monocots?

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

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

Given the differences between angiosperms and gymnosperms in the development of the integument(s), which of these statements is the most logical consequence?

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 -The process labeled "6" involves

Which of the following is True concerning flowering plants?

The sporophytes of mosses depend on the gametophytes for water and nutrition. In seed plants, the reverse is True. From which seed plant sporophyte structure(s)do the immature (unfertilized)gametophytes directly gain water and nutrition?

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 dispersal and/or nurture of young after hatching from the egg