which floral whorls are present or absent on grasses?
543152
Well, you probably know grasses do not have a "calyx" or "corola;" they do have bracts and glumes.  Do you need more specific info.? I will check back.
375994
There are many types of grasses and here are there scientific names.
102478
Your Ph.D guide will be able to help you out. I am sure you will be able to understand the botanical terminology in the following text.\nThere are hundreds of species of Eucalyptus growing world wide mostly located in xeric conditions. The gross anatomical features include the following:\n      1) Cuticularised epidermis, with some times sunken stomata. Multiple epidermis can also be found in some cases.\n      2) Well developed palisade with plenty of chloroplasts.\n      3) Well developed mechanical tissue.\n      4) Presence of oil glands.\nAll these features are ecological adaptations to the dry habitat. \nYour university will be in position to tell you about the previous work done on the subject. A good library will give you the books. Go for ‘Ecological anatomy of dicotyledonous plants‘ or ‘Anatomy of Dicotyledonous Plants‘.
266188
In angiosperms there is fruit as well as seed formation. \nIn gymnosperm ther is only seed formation but no fruit formation, this is the most important and major difference between them.\nEdit-: The difference I quoted   above   is the major and the fundamental one. The other differences are as follows:- Gymnosperms are all trees, some of them are very tall and massive. The Angiosperms,\n on the other hand, can be trees, herbs as well as shrubs.\n Internally (Anatomically speaking) Gymnosperms  have; Tracheids in xylem and sieve cells in phloem , companion cells are absent. Their xylem walls have bordered pits.\nIn Angiosperms, true vessels i.e. tracheae are present in xylem. Sieve tubes and companion cells are present in phloem. Their xylem walls show simple pits.\nGymnosperms are more ancient than the Angiosperms.\n I only hope that you understand the botanical terminology in the above text.
179937
you mean pistil - central set of reproductive organs of flowers, composed of one or more carpels which receives the pollen\n\nsepals - small leaves underneath a flower. This is helpful at the early stage of the flower for it supports the development of the bud(still closed or young flower)\n\nstamen - the long dangling parts that produces pollen\n\npetals - are often bright and colorful and different form so that insects will be attracted, for insects are helpful in pollination
602209
Are you looking for a specific flower? The plant shown on the site below is an example. A lot of other species in this family (some climbers, some not) have similar characteristics.  Moth pollinated plants often have white tubular flowers that open at night and have a strong fragrance ... but not all have wind-dispersed seeds (example: Cereus peruvianus, one of the columnar cacti, has a fleshy fruit).
685716
hear let me help..let's say if there is a white flower and a red flower, and they produce a pink flower..that's an example of incomplete dominance. hope this helps!
1030030
There isn't a "species", because Aloe vera is itself the species you are asking about. However, I have seen some varieties of it with hardly any spikes along the leaf edges. In part, I think this may happen when it is growing rapidly in length. I don't know specifically how to encourage this kind of leaves, but looking for an individual with this type of leaves might work for you? Also, look for a representative with FAT leaves, and they won't seem as spiky.
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http://plants.usda.gov
869981
A. plant cells do not have centrioles.
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The mosses and liverworts are non-vascular-All the rest are vascular.\n\nhttp://blue.utb.edu/biology/Oliva/notes_plants.htm\n\nhttp://www.saskschools.ca/curr_content/biology20/unit3/unit3_mod6_les1.htm
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Hi Erica, \n\nI'd waste both your and my time if I try to answer this question with lots of detail. I'd suggest you go to your textbook, flip a few pages here and there, get a broad idea and then, come back and read this answer. \n\nPlease notice that I'll have to make this answer less complex by generalizing concepts and avoiding some fine details which you can easily read in your textbook.\n\nNow, without wasting much time, here is my answer-\n\n===================\n\nCharacteristics of animal sexual life cycles-\n\n1- Usually, there are two parents- male and female. Both form special haploid cells called gametes by meiosis.\n\n2- Gametes fuse in pairs to form diploid cells called zygotes (fertilization).\n\n3- Repeated mitotic divisions of the zygote forms embryos.\n\n4- And the embryo develops into a new individual.\n\nSooo simple!\n\n====================\n\nCharacteristics of plant sexual life cycles-\n\nIt is same as animal sexual reproduction. Just that the technical terms and the methods of reproduction are a little different in flowering and non-flowering plants. I suggest you to read your textbook for the detailed terminology.\n\nIn plants-\n\n1- Diploid sporophytic cells divide by meiosis to give haploid gametophytic cells.\n\n2- Haploid gametophytic cells from male and female fuse to form the diploid zygote.\n\n3- The zygote then develops into an embryo and then to a full diploid plant body.\n\n* There are lots of finer details like the flowering system in flowering plants: pollens, ovules etc. and sporangia in non-flowering plants. I suggest you to study the life cycles of different bryophytes, gymnospermae and angiospermae to get the idea.\n\n================\n\nCharacteristics of fungal sexual life cycles-\n\n1- It involves fusion of two compatible sex cells/ gametes. The sex organs that produce gametes are called gametangia.\n\n2- The gametangia of fungi are unicellular and are surrounded by a sterile jacket. In fungi, there is a gradual reduction in sexuality from lower to the higher fungi.\n\n3- In the first stage, the cytoplasms of two sex cells fuse with each other but the nuclei do not fuse. The cell is thus called a dikaryon. (Plasmogamy).\n\n4- The nuclei then fuse to form the synkaryon. (Karyogamy).\n\n5- The diploid cell after that, produces haploid nuclei by meiosis.\n\nThere are broadly five types of sexual fusion in fungi.\n\nHere they are-\n1- Planogametic copulation. \nOne or both of the gametes are motile.\n\n2- Gametangial contact. \nThe two gametangia come together and the male gametangia forms a tube through which the male non-motile gamete is sent to the female gametangia.\n\n3- Gametangial copulation. \nThe gametangia themselves fuse together and lose their sexual identities to form zygospore.\n\n4- Spermatization. \nNumerous spore-like minute bodies (spermatia) are sent through various agencies to the receptive hyphae or trychogyne of female gametangium.\n\n5- Somatogamy.\nIn this mode, sex organs are not formed and the fusion occurs two vegetative cells resulting in the formation of dikaryon.\n\n=================\nI hope the above info helps.
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Non-vascular, non-seed plants are called bryophtes. These include liverworts, hornwarts, and mosses. They differ from flowering plants in that they are gametophyte-oriented, or in other words they contain both male and female parts on the same plant. Also, they reproduce by spores, not seeds. The parts needed to produce such spores obviously. A flowering plant, like say a rose for instance, would only have female or male parts, but not both. Then a bee or hummingbird could tranfer the pollen from a male plant to female plant, for example.
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http://images.google.com/images?svnum=10&hl=en&lr=&ie=ISO-8859-1&q=monocot+stem
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Various flowers which are scented with beautiful fragrance have essential oils in them.These are either secondary metabolites or they are present as an attracting substance in insect pollinating flowers.There are oil glands present inside the floral whorls strategically located near the stamens(male parts containing pollen) or near the ovary to facilitate pollination.The insects are directed by the aroma.
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Many ways.\n\nPlants would have organelles specific to a plant and would be a rectangular shape with 2 nuclei during cytokinesis\n\nanimal would have no chroloplasts and would be oval because the nuclei push as far apart as possible and the animal cell is flexible, not rigged like a plant.
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Floral biology and breeding behavior were studied in the bamboo Dendrocalamus strictus Nees. The inflorescence in this species is a large branching panicle. Fertile florets are intermixed with smaller sterile ones. There are six stamens. The ovary is stipitate and turbinate. The style is long and the stigma is bifid and plumose. Dendrocalamus strictus is typically dichogamous and protogynous. The gynoecium matures 3-4 days before the androecium, effectively preventing self pollination. Flower bloom, which took place over a period of 2 to 3 h, was dependent on air temperature and only occurred between 0600 and 1300 h. Dendrocalamus strictus is anemophilous. Flowers in the male phase were visited by insects. These insects completely neglected the flowers at the female phase. The insects fed on the pollen and were not pollen vectors. When wind was excluded by enclosing the inflorescences in bags there was no seed set, indicating that cross pollination by wind is necessary for fertilization and that parthenocarpy and apomixis are not occurring in this species. Pollen fertility was about 98% as indicated by staining fresh pollen at the time of anther dehiscence and pollen release with Alexander's stain (Alexander 1969). When placed on a modified Brewbaker-Kwak medium containing 1% glucose, the pollen grains germinated well, and the pollen tubes grew to 15-20 times the diameter of mature pollen grains. Although profound protogyny has its disadvantages in times of sporadic flowering, it can be useful in breeding programs because it eliminates the need for emasculation.