Homework Answers
Answer ) seed
EXPLANATION
Seed is major organs which lead to evolution of land plants reducing their dependence on water. The seed consist of or embryo which is an diploid tissue in the dormant state till the favourable conditions arises. Once the favourable conditions arise the new sporophyte is germinate from the embryo present within the seeed. Seed consist of hard covering layer which protect from dessication while have storage tissue providing nutrients to sustain their growth.
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Question 29 Which one of these has an embryo and tissue...
Q: Males cones are called staminate cones, where on the tree are they found? Each scale...
Q: Males cones are called staminate cones, where on the tree are they found? Each scale (microsporophyll) on the staminate cone bears a microsporangium that produces pollen grains (male gametophytes) Q: What do we call the pine's male gametophytes? Procedures 30.3 & 30.4 Phylum Coniferophyta → See figures named below in parenthesis from lab book Female ovulate cones are on upper branches of pine trees; each produces megaspores that undergo mitosis into a megagametophyte which, together with its surrounding tissues,...
TO DO 2: below: Review the Pine life cycle diagrammed In the table below, match the...
TO DO 2: below: Review the Pine life cycle diagrammed In the table below, match the correct name to each of the structures labelled (A-P) above. Choose from the following names: megaspore, egg, integument, mature sporophyte, ovule, male gametophyte, sperm nucleus, female cone, embryo, pollen grain, seed, pollen cone, megasporangium, seedling, microspores, female gametophyte. [1 mark for each correct answer] AI B) ск DL EM FN GO HP
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
Choose the right answer please Question 32 Which statement is most accurate concerning plant evolution? a....
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.
choose the correct answer please Question 15 Which is the most recent trait to have evolved...
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Question 15 Which is the most recent trait to have evolved in seed plants? a. cone. b. heterospory C. gametophyte. d. ovary e. seed.
Plant Diversity The scales of the female cones bear ovules, which enclose the female sporangia. Cells...
Plant Diversity The scales of the female cones bear ovules, which enclose the female sporangia. Cells in the female sporangia also undergo meiosis to produce spores. One of the spores from each meiotic division develops into a female gametophyte by mitosis. As the pollen germinates and produces sperm nuclei by mitosis, the female gametophyte produces an egg. One sperm nucleus reaches the egg through the pollen tube and fertilizes it. Notice in Figure 6 that the male gametangium has been...
please choose the right answer Question 39 Which of the following gymnosperm reproductive structures is haploid?...
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...
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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....
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...
please choose the correct answer Question 39 Which of the following gymnosperm reproductive structures is haploid?...
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
Q: Males cones are called staminate cones, where on the tree are they found? Each scale (microsporophyll) on the staminate cone bears a microsporangium that produces pollen grains (male gametophytes) Q: What do we call the pine's male gametophytes? Procedures 30.3 & 30.4 Phylum Coniferophyta → See figures named below in parenthesis from lab book Female ovulate cones are on upper branches of pine trees; each produces megaspores that undergo mitosis into a megagametophyte which, together with its surrounding tissues,...
TO DO 2: below: Review the Pine life cycle diagrammed In the table below, match the correct name to each of the structures labelled (A-P) above. Choose from the following names: megaspore, egg, integument, mature sporophyte, ovule, male gametophyte, sperm nucleus, female cone, embryo, pollen grain, seed, pollen cone, megasporangium, seedling, microspores, female gametophyte. [1 mark for each correct answer] AI B) ск DL EM FN GO HP
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
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.
choose the correct answer please
Question 15 Which is the most recent trait to have evolved in seed plants? a. cone. b. heterospory C. gametophyte. d. ovary e. seed.
Plant Diversity The scales of the female cones bear ovules, which enclose the female sporangia. Cells in the female sporangia also undergo meiosis to produce spores. One of the spores from each meiotic division develops into a female gametophyte by mitosis. As the pollen germinates and produces sperm nuclei by mitosis, the female gametophyte produces an egg. One sperm nucleus reaches the egg through the pollen tube and fertilizes it. Notice in Figure 6 that the male gametangium has been...
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....
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...
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
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