The fern gametophyte develops gametangia including the __________ which produce the eggs and the _________ which...
The fern gametophyte develops gametangia including the __________ which produce the eggs and the _________ which produce the sperm, both by the process of _________.
A. archegonia; antheridia; meiosis
B. archegonia; antheridia; mitosis
C. antheridia; archegonia; meiosis
D. antheridia; archegonia; mitosis
Homework Answers
The fern gametophyte develops gametangia including the archegonia which produce the eggs and the antheridia which produce the sperm, both by the process of mitosis.
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The fern gametophyte develops gametangia including the
__________ which produce the eggs and the _________ which...
ving questions about ferns: 1. Are the spores produced by the fern sporophyte formed by mitosis...
ving questions about ferns: 1. Are the spores produced by the fern sporophyte formed by mitosis or meiosis? 2. Do the spores belong to the gametophyte or the sporophyte generation? 3. Are the gametes produced by mitosis or meiosis? 4. Are the archegonia and antheridia haploid or diploid? (HINT: Think about which generation produces them) 5. Is the dominant generation for the fern the gametophyte or the sporophyte? 6. Can you suggest an ecological role for ferns?
Question 22 (2 points) Male gametophytes produce sperm in OB) Archegonia OC) Gametophyte D) Sporophyte A)...
Question 22 (2 points) Male gametophytes produce sperm in OB) Archegonia OC) Gametophyte D) Sporophyte A) Antheridia
Question 21 2 pts In which of the following taxa does the mature sporophyte depend completely...
Question 21 2 pts In which of the following taxa does the mature sporophyte depend completely on the gametophyte for nutrition? O Anthophyta O Bryophyta Pterophyta (Psilotopsida) O Gingophyta Lycophyta If a fern gametophyte is a hermaphrodite (that is, has both male and female gametangia on the same plant), then it has antheridia and archegonia combined into a single sex organ. O must be diploid. belongs to a species that is homosporous. has lost the need for a sporophyte generation....
From the C-fern illustrations that you collected during lab throughout the semester, select the i...
From the C-fern illustrations that you collected during lab throughout the semester, select the illustrations that best represent the sequential stages of growth of your C-fern; beginning with the germinated spore and ending with the young sporophyte individual. Arrange the illustrations you selected in a sequence that illustrates GRAPHICALLY (do not write sentences or paragraphs to explain the stages) the growth, development and reproduction of your C-fern. Each illustration of each growth stage will require a concise legend in order...
From the C-fern illustrations that you collected during lab throughout the semester, select the illustrations that...
From the C-fern illustrations that you collected during lab throughout the semester, select the illustrations that best represent the sequential stages of growth of your C-fern; beginning with the germinated spore and ending with the young sporophyte individual. Arrange the illustrations you selected in a sequence that illustrates GRAPHICALLY (do not write sentences or paragraphs to explain the stages) the growth, development and reproduction of your C-fern. Each illustration of each growth stage will require a concise legend in order...
51 Review questions: 1. Does the thallus contain vascular tisues? 2. 1s the thallus the gametophyte...
51 Review questions: 1. Does the thallus contain vascular tisues? 2. 1s the thallus the gametophyte or the sporophyte generation? 3. Where are the rhizoids located and what is their function? 4. Where is the pore located and what is its function? (similar to stoma in higher plants) 5. Is the gemmae cup a sexual or asexual reproductive structure? 6. Are gemmae haploid or diploid?_ 7. When rain splashes the gemmae out of the cup, what do they grow into?...
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,...
IV. Fill In The Blanks (2 pts each). The answers are among the terms listed at...
IV. Fill In The Blanks (2 pts each). The answers are among the terms listed at the bottom of the page. [Total = 30 points There are three different life cycle patterns known as Gametic Meiosis, Zygotic Melosis and Sporic Meiosis. All animals undergo 39. Meiosis, whereas all terrestrial plants undergo 40. Meiosis. In lily seeds, the tissue that provides nutrition for the developing embryo is called the , whereas in pine seeds, the tissue that provides nutrition for developing...
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...
_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...
ving questions about ferns: 1. Are the spores produced by the fern sporophyte formed by mitosis or meiosis? 2. Do the spores belong to the gametophyte or the sporophyte generation? 3. Are the gametes produced by mitosis or meiosis? 4. Are the archegonia and antheridia haploid or diploid? (HINT: Think about which generation produces them) 5. Is the dominant generation for the fern the gametophyte or the sporophyte? 6. Can you suggest an ecological role for ferns?
Question 22 (2 points) Male gametophytes produce sperm in OB) Archegonia OC) Gametophyte D) Sporophyte A) Antheridia
Question 21 2 pts In which of the following taxa does the mature sporophyte depend completely on the gametophyte for nutrition? O Anthophyta O Bryophyta Pterophyta (Psilotopsida) O Gingophyta Lycophyta If a fern gametophyte is a hermaphrodite (that is, has both male and female gametangia on the same plant), then it has antheridia and archegonia combined into a single sex organ. O must be diploid. belongs to a species that is homosporous. has lost the need for a sporophyte generation....
51 Review questions: 1. Does the thallus contain vascular tisues? 2. 1s the thallus the gametophyte or the sporophyte generation? 3. Where are the rhizoids located and what is their function? 4. Where is the pore located and what is its function? (similar to stoma in higher plants) 5. Is the gemmae cup a sexual or asexual reproductive structure? 6. Are gemmae haploid or diploid?_ 7. When rain splashes the gemmae out of the cup, what do they grow into?...
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,...
IV. Fill In The Blanks (2 pts each). The answers are among the terms listed at the bottom of the page. [Total = 30 points There are three different life cycle patterns known as Gametic Meiosis, Zygotic Melosis and Sporic Meiosis. All animals undergo 39. Meiosis, whereas all terrestrial plants undergo 40. Meiosis. In lily seeds, the tissue that provides nutrition for the developing embryo is called the , whereas in pine seeds, the tissue that provides nutrition for developing...
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...
_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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