Homework Answers
1, 2, 3, 5
There are three generations in a seed -
1. The diploid seed coat which originates from the integument of female gametophyte
2. The diploid embryo formed by the fertilization of male and female nuclei
3. The triploid endosperm which is meant for the nutrition of embryo
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Help Select each type of tissue that may be found in a mature fruit or seed....
1. Male cone in the male cones, _(haploid or diploid) male gametophytes called _ _ are...
1. Male cone in the male cones, _(haploid or diploid) male gametophytes called _ _ are produced. These will produce 2. Female cone In the female cones, _(haploid or diploid)_ female gametophytes are produced. This female will contain an egg. 3. Fertilization. When the sperm fertilizes the egg, a _(haploid or diploid)_ embryo is produced. This embryo is the new _(sporophyte or gametophyte)_generation. 4. Seeds Food and a protective coat will be wrapped around the embryo. The embryo, food and...
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...
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...
Saved Help Save & Exit Submit paring reproduction in plants plete the statements below by filling...
Saved Help Save & Exit Submit paring reproduction in plants plete the statements below by filling in the best answer. Answer choices may be used once, more once, or not at all. , the sporophyte provides the In gymnosperms and gametophyte with nutrition, while in sporophyte and gametophyte live independently of each other gymnosperms the hyphae In plants calledand seedless vascular plants, sperm need water in order to swim to the eggs gametophyte generation provides nutrition for the generation in...
Phylum Hepatophyta: Liverworts Like the moss, liverworts begin as a haploid spore. As a liverwort spore...
Phylum Hepatophyta:
Liverworts
Like the moss, liverworts begin as a haploid spore. As a
liverwort spore germinates, it develops into a flat, lobed,
leaf-like structure called a thallus. The thallus
grows prostrate with the ground’s surface, forming
rhizoids that anchor it in place.
Liverworts reproduce asexually primarily by
fragmentation; however, some liverworts may also
reproduce asexually by bundles of tissue called
gemmae. In many liverworts, gemmae develop in
small cup-like structures called gemmae cups.
Splashed from the cups by rain,...
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,...
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...
In ferns, both the gametophyte and sporophyte are physiologically capable of surviving on their own. Which...
In ferns, both the gametophyte and sporophyte are physiologically capable of surviving on their own. Which of the following are reasonable hypotheses for why vascular tissues are present only in the sporophyte generation? Select all that apply. There is no advantage for the gametophyte to grow tall, because fern gametophytes typically produce only male or female gametes at any one time There is no advantage for the gametophyte to grow tall, because gametes must be produced near the ground where...
ws. Unless you need to edit it's safer to stay in Protected View Enable Editing Alternation...
ws. Unless you need to edit it's safer to stay in Protected View Enable Editing Alternation of generations describes plant life cycles. There are ſhow many?) generations. • The gametophyte generation begins when the process of forms (ploidy) cells. The gametophyte generation ends when a (ploidy) _ is formed by the process of_ Figure 38.4 Alternation of generations: What are the two generations in the plant life cycle? What is the male gametophyte? Female? The microsporangium in the pollen sac....
1. Male cone in the male cones, _(haploid or diploid) male gametophytes called _ _ are produced. These will produce 2. Female cone In the female cones, _(haploid or diploid)_ female gametophytes are produced. This female will contain an egg. 3. Fertilization. When the sperm fertilizes the egg, a _(haploid or diploid)_ embryo is produced. This embryo is the new _(sporophyte or gametophyte)_generation. 4. Seeds Food and a protective coat will be wrapped around the embryo. The embryo, food 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...
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...
Saved Help Save & Exit Submit paring reproduction in plants plete the statements below by filling in the best answer. Answer choices may be used once, more once, or not at all. , the sporophyte provides the In gymnosperms and gametophyte with nutrition, while in sporophyte and gametophyte live independently of each other gymnosperms the hyphae In plants calledand seedless vascular plants, sperm need water in order to swim to the eggs gametophyte generation provides nutrition for the generation in...
Phylum Hepatophyta:
Liverworts
Like the moss, liverworts begin as a haploid spore. As a
liverwort spore germinates, it develops into a flat, lobed,
leaf-like structure called a thallus. The thallus
grows prostrate with the ground’s surface, forming
rhizoids that anchor it in place.
Liverworts reproduce asexually primarily by
fragmentation; however, some liverworts may also
reproduce asexually by bundles of tissue called
gemmae. In many liverworts, gemmae develop in
small cup-like structures called gemmae cups.
Splashed from the cups by rain,...
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,...
ws. Unless you need to edit it's safer to stay in Protected View Enable Editing Alternation of generations describes plant life cycles. There are ſhow many?) generations. • The gametophyte generation begins when the process of forms (ploidy) cells. The gametophyte generation ends when a (ploidy) _ is formed by the process of_ Figure 38.4 Alternation of generations: What are the two generations in the plant life cycle? What is the male gametophyte? Female? The microsporangium in the pollen sac....
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