Which of the following are made of single cell? a. spore b. pollen grain c. seed...
Which of the following are made of single cell?
a. spore
b. pollen grain
c. seed
d. egg
e. ovule
f. sperm
g. zygote
Homework Answers
Answer - [a] spores [ haploid reproductive bodies in many organisms]
[d] egg [ unicellular ]
[e] ovule [female gamete]
[f] sperm [the male gamete]
[g] zygote [ a single cell formed after fusion of male and female gametes]
Pollen grains enclose two types of cells- a vegetative [ non-reproductive] and generative [reproductive]] cell.
Seed is a multicellular structure, comprising of cotyledons and a multicellular embryo.
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Which of the following are made of single cell?
a. spore
b. pollen grain
c. seed...
Which statements below are true of "ovules"? (Mark all that apply.) □ An ovule contains a...
Which statements below are true of "ovules"? (Mark all that apply.) □ An ovule contains a cell that will go through meiosis to produce a megaspore (four megaspores, actually, but only one survives). a free-living female gametophyte. An"ovule" is a megasporangium of a seed plant that is surrounded by An ovule will be dispersed from the pine tree, and germinate to produce integuments. develop from a megaspore inside the ovule. become a zygote. An ovule will remain on the tree,...
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,...
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...
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 29 Which one of these has an embryo and tissue...
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
6) A human cell containing 22 autosomes and a Y chromosome is A) a somatic cell...
6) A human cell containing 22 autosomes and a Y chromosome is A) a somatic cell of a female. B) a sperm C) a somatic cell of a male. D) an egg. E) a zygote.
Draw and label each of the cell types indicated below, and answer the following questions. Sperm...
Draw and label each of the cell types indicated below, and answer the following questions. Sperm cells a) How does the size of the sperm cells compare with the size of the unfertilized egg cells (be as specific as possible: record the magnification that you used for each.) Unfertilized egg cells b) Are these cells haploid or diploid? Fertilized egg (zygote, fertilization membrane) c) Is this cell haploid or diploid? d) How does the appearance of this cell compare with...
describe double fertilization in angiosperms. include the following points in your response. - which cell in...
describe double fertilization in angiosperms. include the following points in your response. - which cell in pollen grain produces the sperm cells? what does each sperm cell join with, and in each case what develops after the sperm cell joins with another cell or nuclei ?
no need explaination, I will give a thumb thanks. 16. Which of the following does NOT...
no need explaination, I will give a thumb thanks.
16. Which of the following does NOT have a gastrovascular cavity? a) earthworm b) flatworm c) hydra d) jellyfish 26. Sexual reproduction is the creation of a zygote by a) development of an unfertilised egg. b) fusion of male gamete (sperm) and female gamete (egg). c) fusion of a sperm from one species and an egg from another species. d) fusion of female gamete (sperm) and male gamete (egg). 22. The...
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....
Which statements below are true of "ovules"? (Mark all that apply.) □ An ovule contains a cell that will go through meiosis to produce a megaspore (four megaspores, actually, but only one survives). a free-living female gametophyte. An"ovule" is a megasporangium of a seed plant that is surrounded by An ovule will be dispersed from the pine tree, and germinate to produce integuments. develop from a megaspore inside the ovule. become a zygote. An ovule will remain on the tree,...
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,...
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...
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 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
Draw and label each of the cell types indicated below, and answer the following questions. Sperm cells a) How does the size of the sperm cells compare with the size of the unfertilized egg cells (be as specific as possible: record the magnification that you used for each.) Unfertilized egg cells b) Are these cells haploid or diploid? Fertilized egg (zygote, fertilization membrane) c) Is this cell haploid or diploid? d) How does the appearance of this cell compare with...
no need explaination, I will give a thumb thanks.
16. Which of the following does NOT have a gastrovascular cavity? a) earthworm b) flatworm c) hydra d) jellyfish 26. Sexual reproduction is the creation of a zygote by a) development of an unfertilised egg. b) fusion of male gamete (sperm) and female gamete (egg). c) fusion of a sperm from one species and an egg from another species. d) fusion of female gamete (sperm) and male gamete (egg). 22. The...
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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