Homework Answers
| Question No. | Correct option | Explanation |
| 26 | C) Bryophyte | Bryophytes are primitive avascular plants. In their alternation of generation, the gametophyte phase is dominant, meaning that the actual plant you see is a made up of haploid cells, while their diploid stages are smaller spores. |
| 27 | B) Flowering plants | the seed is found in both gymnosperms and angiosperms (flowering plants), but only flowering plants reproduce by pollens. |
| 28 | D) Two of these are correct | Unlike bryophytes, vascular plants spend most of its life in a diploid body (hence sporophyte) which is known to us as actual plants. The haploid phase of the plant is what participates in reproduction, as in pollen and ovary. These include both gymnosperms and flowering plants. |
| 29 | B) Flowering plants | Fruits are formed from ovaries of the flower. Hence it is found only in flowering plants. |
| 30 | A) Gymnosperms | Both Gingko biloba and Pinus are examples of the gymnosperms. Gymnosperms are seed-bearing but their seeds are uncovered ("naked") due to absence of any fruit structure. |
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A-D immediately below are possible answers for questions 26-30 A) Gymnosperms B) Flowering plants C) Bryophytes...
16. True leaves are only found in mosses, liverworts, and homworts B. c. D ferns flowering...
16. True leaves are only found in mosses, liverworts, and homworts B. c. D ferns flowering plants ferns and seed plants trees Roots evolved red c before stems before rhizoids after stems after flowers first in mosses A seed protects the B. male gametophyte the pollen tube embryo fruit spores D Gymnosperms include A. B. mosses, liverworts, and hornworts ferns seedless plants pines flowering plants D. 20. Naked seeds are found in A B. mosses, liverworts, and homworts ferns gymnosperms...
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...
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....
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...
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...
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...
28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living...
28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living gametophytes; D) are all monoecious; E) none of the above 29. The first land plants share a most recent common ancestor with a group of aquatic organisms that lived in the littoral zone known as: A) charophyceans; B) chlorophytes; C) catphytes; D) coanocytes; E) cycadophytes 30. Which of the following is true for organisms with zygotic meiosis? A) The gametes are produced from haploid...
_28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living...
_28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living gametophytes; D) are all monoecious; E) none of the above 29. The first land plants share a most recent common ancestor with a group of aquatic organisms that lived in the littoral zone known as: A) charophyceans; B) chlorophytes; C) catphytes; D) coanocytes; E) cycadophytes 30. Which of the following is true for organisms with zygotic meiosis? A) The gametes are produced from haploid...
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...
16. True leaves are only found in mosses, liverworts, and homworts B. c. D ferns flowering plants ferns and seed plants trees Roots evolved red c before stems before rhizoids after stems after flowers first in mosses A seed protects the B. male gametophyte the pollen tube embryo fruit spores D Gymnosperms include A. B. mosses, liverworts, and hornworts ferns seedless plants pines flowering plants D. 20. Naked seeds are found in A B. mosses, liverworts, and homworts ferns gymnosperms...
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...
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....
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...
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...
28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living gametophytes; D) are all monoecious; E) none of the above 29. The first land plants share a most recent common ancestor with a group of aquatic organisms that lived in the littoral zone known as: A) charophyceans; B) chlorophytes; C) catphytes; D) coanocytes; E) cycadophytes 30. Which of the following is true for organisms with zygotic meiosis? A) The gametes are produced from haploid...
_28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living gametophytes; D) are all monoecious; E) none of the above 29. The first land plants share a most recent common ancestor with a group of aquatic organisms that lived in the littoral zone known as: A) charophyceans; B) chlorophytes; C) catphytes; D) coanocytes; E) cycadophytes 30. Which of the following is true for organisms with zygotic meiosis? A) The gametes are produced from haploid...
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