Where on the tree you would expect to find male cones, and which structures are haploid and which are diploid. Compare and contrast the staminate cone of Pinus to the sorus of ferns
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Where on the tree you would expect to find male cones, and which structures are haploid and which are diploid. Compare and contrast the staminate cone of Pinus to the sorus of ferns
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- In flowers, the structures that produce male gametophytes are called _______ ;the strcutures that produce female gametophytes are called _______ . a. pollen grains; flowers c. anthers; stigma b. stamen; carpels d. megaspores; microsporesFern Prothallus Describe the process of fertilization in fernsAll plants which have oogamy have the structure called ovules. True or false and provide an explanation.
- Which reproductive structures would be found in a seedless, nonvascular plant? A. ovules B. archegonia C. cones D. megasporangiaPlants undergo an alternation of generations. This means that the diploid _____ produces spores, which develop into the haploid _____.sporophyte; flowerssporophyte; seedssporophyte; gametophytegametophyte; sporophyteflowers; gametophyteExplain: Cycads produce seed cones and pollen cones, each on separate plants.
- Complete the following analogies: a. Gametophyte is to haploid as __________ is to diploid. b. __________ are to conifers as flowers are to __________. c. Ovule is to seed as ovary is to __________.Most flowers contain both male and female reproductive structures, in contrast to the cones of gymnosperms, which are either male or female. Explain how bisexual flowers might be an advantageous evolutionaryadaptation to the flowering plants that possess them.The leafy, green moss plants that are familiar are gametophytes, haploid plants. This is very different from flowering plants and other seed plants. Does a leafy green moss plant grow from a spore or from a fertilized egg? Does the moss plant have both paternal parent and maternal parent?
- a. How do the moss gametophyte and sporophyte stages obtain their energy b. Is the prominent part of the liverwort haploid or diploid?Plants that are dioecious are best described as having: -archegonia and antheridia on separate gametophytes. -archegonia and antheridia on separate sporophytes. -archegonia and antheridia on the same gametophyte -the ability to make pollen grains via archegonia -ovules contained within antheridiaMale gametophytes in the pine tree are produced by which of the following processes? -Gametogenesis -Mitosis -Neither mitosis nor meiosis -Meiosis -Microsporophyte generation