Homework Answers
The correct option is (d) Ovary.
Ovary is a part of gynoecium or female reproductive organ that holds or contains the ovule. It is the enlarged base of pistil located above or below or at the same level or point of connection with the base of petals and sepals. It is present in angiosperms (latest phylum) or flower bearing plants and thus it is not present in phylums before angiosperms as they are not plant bearing phylums.
Option (a) is incorrect because it is present on conifers (gymnosperms), horsetails and club moss.
Option (b) is incorrect because heterospory is present in some pteridophytes and all seed bearing plants.
Option (c) is incorrect because gametophyte character appeared in bryophytes.
Option (e) is incorrect because seed character appeared in gymnosperms and then continued in angiosperms where an ovule gives rise to a seed.
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Question 15 Which is the most recent trait to have evolved...
Choose the right answer please Question 32 Which statement is most accurate concerning plant evolution? a....
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Question 32 Which statement is most accurate concerning plant evolution? a. Many more recently evolved plants no longer have a sporophyte. b. The gametophyte has become smaller, and the sporophyte has become larger. c. The sporophyte has become larger, but the gametophyte has not changed. d. More ancient plants were mostly diploid sporophytes. e. More recently evolved plants are mostly haploid gametophytes.
please choose the correct answer Question 19 Which of these developmental processes is most directly accurate?...
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Question 19 Which of these developmental processes is most directly accurate? a. embryo®fruit b.ovule®fruit c. ovary®fruit d. pollen grain®seed
please choose the right answer Question 29 Which one of these has an embryo and tissue...
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Question 29 Which one of these has an embryo and tissue from the sporophyte designed to protect it? a. gametophyte b. seed c. pollen grain d. staminate cone e. spore
please choose the correct answer Question 39 Which of the following gymnosperm reproductive structures is haploid?...
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Question 39 Which of the following gymnosperm reproductive structures is haploid? a. None of these b. seed C. seed cone d.cone scale e. seed coat
please choose the correct answer Question 27 1 points Saving Which statement is true? a. Both...
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Question 27 1 points Saving Which statement is true? a. Both gymnosperms and angiosperms produce seeds on the scales of cones, but angiosperms have flowers. b. Gymnosperms rely on animals to carry pollen from the female gametophyte to the male gametophyte, while angiosperms rely on wind. in gymnosperms, male gametophytes and female gametophytes are produced in different structures, while in angiosperms they are usually produced in the same structure. d. Gymnosperms require water for sperm...
please choose the right answer Question 39 Which of the following gymnosperm reproductive structures is haploid?...
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Question 39 Which of the following gymnosperm reproductive structures is haploid? a. None of these b. seed C. seed cone d.cone scale e. seed coat
choose the correct answer please Question 14 More than anything else, what distinguishes the two types...
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Question 14 More than anything else, what distinguishes the two types of plants of a given species during the alternation of generations? a. The sporophyte is part of the diploid phase while the gametophyte is part of the haploid phase of the plant life cycle. b. The gametophyte is much smaller than the sporophyte. c. The sporophyte undergoes sexual reproduction while the gametophyte undergoes asexual reproduction. d. The sporophyte is much smaller than the gametophyte....
choose the correct answer please Question 4 How is angiosperm fertilization different than in gymnosperms? a....
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Question 4 How is angiosperm fertilization different than in gymnosperms? a. Angiosperms are the only plants to produce seeds after fertilization takes place. b. In angiosperms, the female gametophyte is present on bracts. c. In angiosperms, a sperm fuses with an egg to produce a zygote. d. Unlike other plants, angiosperms require water for fertilization to take place. e. Two fertilization events take place in angiosperms, producing a zygote and endosperm.
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...
Choose the right answer please
Question 32 Which statement is most accurate concerning plant evolution? a. Many more recently evolved plants no longer have a sporophyte. b. The gametophyte has become smaller, and the sporophyte has become larger. c. The sporophyte has become larger, but the gametophyte has not changed. d. More ancient plants were mostly diploid sporophytes. e. More recently evolved plants are mostly haploid gametophytes.
please choose the correct answer
Question 19 Which of these developmental processes is most directly accurate? a. embryo®fruit b.ovule®fruit c. ovary®fruit d. pollen grain®seed
please choose the right answer
Question 29 Which one of these has an embryo and tissue from the sporophyte designed to protect it? a. gametophyte b. seed c. pollen grain d. staminate cone e. spore
please choose the correct answer
Question 39 Which of the following gymnosperm reproductive structures is haploid? a. None of these b. seed C. seed cone d.cone scale e. seed coat
please choose the correct answer
Question 27 1 points Saving Which statement is true? a. Both gymnosperms and angiosperms produce seeds on the scales of cones, but angiosperms have flowers. b. Gymnosperms rely on animals to carry pollen from the female gametophyte to the male gametophyte, while angiosperms rely on wind. in gymnosperms, male gametophytes and female gametophytes are produced in different structures, while in angiosperms they are usually produced in the same structure. d. Gymnosperms require water for sperm...
please choose the right answer
Question 39 Which of the following gymnosperm reproductive structures is haploid? a. None of these b. seed C. seed cone d.cone scale e. seed coat
choose the correct answer please
Question 14 More than anything else, what distinguishes the two types of plants of a given species during the alternation of generations? a. The sporophyte is part of the diploid phase while the gametophyte is part of the haploid phase of the plant life cycle. b. The gametophyte is much smaller than the sporophyte. c. The sporophyte undergoes sexual reproduction while the gametophyte undergoes asexual reproduction. d. The sporophyte is much smaller than the gametophyte....
choose the correct answer please
Question 4 How is angiosperm fertilization different than in gymnosperms? a. Angiosperms are the only plants to produce seeds after fertilization takes place. b. In angiosperms, the female gametophyte is present on bracts. c. In angiosperms, a sperm fuses with an egg to produce a zygote. d. Unlike other plants, angiosperms require water for fertilization to take place. e. Two fertilization events take place in angiosperms, producing a zygote and endosperm.
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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