Homework Answers
Ans.38. pollen.
In addition to seeds, pollen is characteristics are unique to the seed-producing plants.
Pollen is a powdery substance that consist in plants pollen is used for transfer haploid male genetic material from the anther of a single flower to the stigma of another via process that called pollination. pollen grains which are male microgametophytes of seed plants, and pollen grains are producing a male gamats. Outer layer of pollen grains are made-up of sporopolinin. That are too much hard. This protect pollen grains in a process of pollination. Means to transfer from stamen to pistil of flowering plants.
Ans. by facilitating dispersal of seeds
this is a process or mechanism which seed of angiosperm plants are transported to new site for a process of germination and also establishment of a new generation. There are a main five modes that are help in seed dispersal and that are gravity,wind, ballistic,water and by animal. But some plants are dispersal seed only through environment factors.
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Question 38 2 pts In addition to seeds, which of the following characteristics are unique to...
Question 1 1 pts 1) Which of the following is not functionally important in the cells...
Question 1 1 pts 1) Which of the following is not functionally important in the cells of the gametophytes of both angiosperms and gymnosperms? A) haploid nuclei B) mitochondria C) cell walls D) plastids ОА OB - OC Question 2 1 pts 2) In addition to seeds, which of the following characteristics is unique to the seed- producing plants? A) sporopollenin B) alternation of generations C) pollen D) megaphylls OD Question 3 1 pts 3) The closest relatives of the...
PLEASE HELP WITH ALL QUESTIONS Which of the following statements is FALSE? Seeds include a source...
PLEASE HELP WITH ALL QUESTIONS
Which of the following statements is FALSE? Seeds include a source of nourishment of the developing embryo. A selective disadvantage of seeds is that the seed coat is highly vulnerable to invasion by fungi and bacteria. Most plants that produce seeds also produce nonflagellated sperm. Many seeds can remain dormant during long periods of drought or low temperatures. 5. In seed plants, fertilization can occur without the presence of water. 2 The world's tallest plants...
All land plants have single cell haploid and single cell diploid states single cell haploid and...
All land plants have single cell haploid and single cell diploid states single cell haploid and multicellular diploid states multicellular haploid and single cell diploid states multicellular haploid and multicellular diploid states A. B. C. D. E. diplontic life cycles 7. A gametophyte is B. c. 2n 3n 4n 5n A sporophyte is In 2n 3n C. D. E. 9. The dominant (bigger) state in mosses, liverworts, and hornworts is the A gametophyte sporophyte C. sporangium D. archegonium E. antheridium...
What are the answers to those questions? Which of the following is a characteristic that is...
What are the answers to those questions?
Which of the following is a characteristic that is NO shared by gymnosperms and angiosperms? A) production of the male gametophyte within the pollen grain B) a female gametophyte that is retained within sporophyte tissue C) Production of both pollen and seeds D) Production of a triploid endosperm Which of the following cells has a different ploidy level from the rest? A) root cells of a flowering plant B) zygote C) cells of...
Question 36 2 pt Which of the following statements correctly describes a portion of the pine...
Question 36 2 pt Which of the following statements correctly describes a portion of the pine life cycle? Apollen tube slowly digests its way through the triploid endosperm. Seeds are produced in pollen-producing cones. Pollen grains contain female gametophytes. O Female gametophytes produce eggs. Which structure is common to both gymnosperms and angiosperms? stigma ovule O carpel ovary anthers
Remove the carpel by cutting it free just below the base. Make a series of thin...
Remove the carpel by cutting it free just below the base. Make a series of thin cross sections through the ovary. The ovary is hollow, and you can see nearly seberical bodies wide. What are these bodies? 7. Flowering plants are divided into two called moncats and sudicots. In the meantime, Table 15. lists significant differences between the two classes of Is your flower a monocolor codico Table 18.1 Monocots and Eudicots Monocots Eudicots One cotyledon Two cotyledons Flower parts...
b ory Marvel Observation Flowering Plant Life Cycle Use Figure 10.6 as a guide to describe...
b ory Marvel Observation Flowering Plant Life Cycle Use Figure 10.6 as a guide to describe the life cycle of flowering plants 1. The parts of the flower involved in reproduction are the and the 2. The there the top of the same has two sacs, which produce - by meiosis. 3. Within an ovule, a megaspore mother sellepoes meliosis to produce four three of which die 4. A microspore underpoes mitosis and becomes a - the male gametophyte. 5....
Plantae: 1. Which of the following correctly describes an evolutionary trend that occurred as land plants...
Plantae: 1. Which of the following correctly describes an evolutionary trend that occurred as land plants evolved? 2. Becoming seedless b. Producing one type of spole Producing nonmotile wametes d. Haploid generation becoming dominant 2. Which of the following occurs in the Ilie cycle of both masses and anglosperms? a. The sporophyte is the dominant generation b. The gametophyce is the dominant gcneration c Spores develop into sporophytes d. The sporophyte products sporcs 3. The evolution of which of the...
1. When you look at a pine or maple tree, the plant you see is a...
1. When you look at a pine or maple tree, the plant you see is a _____. 2. The Brazil nut tree, Bertholletia excels (n = 17), is native to tropical rain forests of South America. It is a hardwood tree that can grow to over 50 meters tall, is a source of high-quality lumber, and is a favorite nesting site for harpy eagles. As the rainy season ends, tough-walled fruits, each containing 8-25 seeds (Brazil nuts), fall to the...
Describe the procedures described throughout this laborotory activity: 10.1 Flowers external: 10 Seed Plants II: Angiosperms...
Describe the procedures described throughout this laborotory
activity:
10.1 Flowers external:
10 Seed Plants II: Angiosperms After completing this exercise, you will be able to 1. define heterosporous, angiosperm, fruit, pollination, double fertiliation, endosperm, aeed, germina tion, annual, biennial, perennial 2. describe the significanceo 3. identify the structures of the flower: 4. recognize the structures and events (those in boldface) that take place in angiosperm reproduction; 5. describe the origin and function of fruit and seed; 6. identify the characteristics...
Question 1 1 pts 1) Which of the following is not functionally important in the cells of the gametophytes of both angiosperms and gymnosperms? A) haploid nuclei B) mitochondria C) cell walls D) plastids ОА OB - OC Question 2 1 pts 2) In addition to seeds, which of the following characteristics is unique to the seed- producing plants? A) sporopollenin B) alternation of generations C) pollen D) megaphylls OD Question 3 1 pts 3) The closest relatives of the...
PLEASE HELP WITH ALL QUESTIONS
Which of the following statements is FALSE? Seeds include a source of nourishment of the developing embryo. A selective disadvantage of seeds is that the seed coat is highly vulnerable to invasion by fungi and bacteria. Most plants that produce seeds also produce nonflagellated sperm. Many seeds can remain dormant during long periods of drought or low temperatures. 5. In seed plants, fertilization can occur without the presence of water. 2 The world's tallest plants...
All land plants have single cell haploid and single cell diploid states single cell haploid and multicellular diploid states multicellular haploid and single cell diploid states multicellular haploid and multicellular diploid states A. B. C. D. E. diplontic life cycles 7. A gametophyte is B. c. 2n 3n 4n 5n A sporophyte is In 2n 3n C. D. E. 9. The dominant (bigger) state in mosses, liverworts, and hornworts is the A gametophyte sporophyte C. sporangium D. archegonium E. antheridium...
What are the answers to those questions?
Which of the following is a characteristic that is NO shared by gymnosperms and angiosperms? A) production of the male gametophyte within the pollen grain B) a female gametophyte that is retained within sporophyte tissue C) Production of both pollen and seeds D) Production of a triploid endosperm Which of the following cells has a different ploidy level from the rest? A) root cells of a flowering plant B) zygote C) cells of...
Question 36 2 pt Which of the following statements correctly describes a portion of the pine life cycle? Apollen tube slowly digests its way through the triploid endosperm. Seeds are produced in pollen-producing cones. Pollen grains contain female gametophytes. O Female gametophytes produce eggs. Which structure is common to both gymnosperms and angiosperms? stigma ovule O carpel ovary anthers
Remove the carpel by cutting it free just below the base. Make a series of thin cross sections through the ovary. The ovary is hollow, and you can see nearly seberical bodies wide. What are these bodies? 7. Flowering plants are divided into two called moncats and sudicots. In the meantime, Table 15. lists significant differences between the two classes of Is your flower a monocolor codico Table 18.1 Monocots and Eudicots Monocots Eudicots One cotyledon Two cotyledons Flower parts...
b ory Marvel Observation Flowering Plant Life Cycle Use Figure 10.6 as a guide to describe the life cycle of flowering plants 1. The parts of the flower involved in reproduction are the and the 2. The there the top of the same has two sacs, which produce - by meiosis. 3. Within an ovule, a megaspore mother sellepoes meliosis to produce four three of which die 4. A microspore underpoes mitosis and becomes a - the male gametophyte. 5....
Plantae: 1. Which of the following correctly describes an evolutionary trend that occurred as land plants evolved? 2. Becoming seedless b. Producing one type of spole Producing nonmotile wametes d. Haploid generation becoming dominant 2. Which of the following occurs in the Ilie cycle of both masses and anglosperms? a. The sporophyte is the dominant generation b. The gametophyce is the dominant gcneration c Spores develop into sporophytes d. The sporophyte products sporcs 3. The evolution of which of the...
Describe the procedures described throughout this laborotory
activity:
10.1 Flowers external:
10 Seed Plants II: Angiosperms After completing this exercise, you will be able to 1. define heterosporous, angiosperm, fruit, pollination, double fertiliation, endosperm, aeed, germina tion, annual, biennial, perennial 2. describe the significanceo 3. identify the structures of the flower: 4. recognize the structures and events (those in boldface) that take place in angiosperm reproduction; 5. describe the origin and function of fruit and seed; 6. identify the characteristics...
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