Homework Answers
Answer - pollens and seeds
Because in earlier plant groups like bryophyta , they produces flagellated sperms and gametangia but this is now absent in gymnosperms and angiosperms . Instead of flagellated sperms and gametangia they have pollens and seeds . The angiosperms mature faster than the earlier plants and gymnosperms and produces large number of seeds . In them seeds remain enclosed inside the fruit so make it more safe for dispersal and growth of new plant . If we compare the presence of vascular system in angiosperms and gymnosperms then we can see they both have vascular system but the unique feature that enable them to thrive on dry land is production of a large amount of seeds and pollens . Gymnosperms are present as the most dominant planatery vegetation after angiosperms .
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Two characteristics shared by gymnosperms and angiosperms that are absent from earlier plant groups and represent...
Angiosperms and gymnosperms exhibit numerous unique adaptations which helped them adapt to life on land. Which...
Angiosperms and gymnosperms exhibit numerous unique adaptations
which helped them adapt to life on land. Which of the following is
not an important adaptation unique to
these two groups?
Question 6 Angiosperms and lymnosperms exhibit numerous unique adaptations which helped them adat life on land. Which of the following is not an important adaptation unique to these two groups transport of water through vascular tissue protection and nourishment of the embryo within a seed dispersal of new plants by seeds...
All land plants have single cell haploid and single cell diploid states single cell haploid and...
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Bryophytes & Seedless vascular plants: Be able to define a true “plant” Know how plants differ...
Bryophytes & Seedless vascular plants: Be able to define a true “plant” Know how plants differ from other photosynthetic organisms (green algae, cyanobacteria) Understand that land plants share a common ancestor with green algae Be familiar with the four stages in land plant evolution, and know that both bryophytes and seedless vascular plants arose in the first stage seedless vascular plants diversified and dominated the Earth in the second stage, during the Carboniferous Period (~350-300 MYA), when coal deposits were...
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...
1. Name the closest relatives to the land plants. 2. List advantages and problems faced by...
1. Name the closest relatives to the land plants. 2. List advantages and problems faced by early plants when they started colonizing terrestrial habitats. 3. List all the similarities that all current land plants share with charophytes. What distinguishes modern plants from charophytes? 4. Plants can be classified based on the presence or absence of___________________. Nonvascular plants are called…… 5. Which form dominates the nonvascular plant life cycle? Which form is dominant for vascular plants? 6. Which additional characteristics are...
The ancestors of plants were probably algae. True/False 2) What do plants and the green algae...
The ancestors of plants were probably algae. True/False 2) What do plants and the green algae charophytes have in common? 3) What advantages did life in land provide for plants? 4) What were the disadvantages for life on land for plants? 5) What are some differences between plants and algae? 6) How do land plants maintain moisture in their cells? 7) What structures do land plants use to obtain resources such as water, minerals, and CO2? 8) List the two...
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...
1. Pick a plant genus from below that has the most bizarre sporophyte in having two...
1. Pick a plant genus from below that has the most bizarre sporophyte in having two strap-like leaves. Group of answer choices Gnetum Ginkgo Cycas Welwitschia Psilotum 2. Which of the following does not possess vascular tissue? Group of answer choices Club moss Equisetum Spike moss True moss Ferns 3. The primary source of paper in the United States is the wood pulp of: Group of answer choices Magnolia and other dicots Tree ferns Pine and other conifers Ferns and...
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....
Angiosperms and gymnosperms exhibit numerous unique adaptations
which helped them adapt to life on land. Which of the following is
not an important adaptation unique to
these two groups?
Question 6 Angiosperms and lymnosperms exhibit numerous unique adaptations which helped them adat life on land. Which of the following is not an important adaptation unique to these two groups transport of water through vascular tissue protection and nourishment of the embryo within a seed dispersal of new plants by seeds...
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...
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...
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....
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