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example of gymnosperms and angiosperms

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From Wikipedia

Flowering plant

The flowering plants ( angiosperms), also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants. Angiosperms are seed-producing plants like the gymnosperm s and can be distinguished from the gymnosperms by a series of synapomorphies (derived characteristics).

From Encyclopedia


angiosperm , term denoting seed plants in which the ovules, or young seeds, are enclosed within the ovary (that part of the pistil specialized for seed production), in contrast to the gymnosperms, in which the seeds are not enclosed within an ovary. The angiosperms constitute the division Magnoliophyta and include all agricultural crops (including the cereal grains and other grasses), all garden flowers and most horticultural plants, all the common broad-leaved shrubs and trees, and all the usual field, garden, and roadside weeds. The angiosperms are the most economically important group of all plants.

From Yahoo Answers

Question:Can anyone answer these 3 questions? (talking about angiosperms here) Pollen tube must grow through carpel tissue to get to ovule. How is this different than gymnosperms? Both sperm migrate down pollen tube. Double fertilization: one sperm fuses with egg and the second fuses with polar nuclei How is this different than gymnosperms? Products = ?

Answers:Gymnosperms are a taxonomic class that includes plants whose seeds are not enclosed in an ovule (like a pine cone). Gymnosperm means as "naked seed". This group is often referred to as softwoods. Gymnosperms usually have needles that stay green throughout the year. Examples are pines, cedars, spruces and firs. Some gymnosperms do drop their leaves - ginkgo, dawn redwood, and baldcypress, to name a few.

Question:To conserve energy, these angiosperms do not produce complete flowers (complete flowers have all four of the basic parts) . Which basic part would most likely be missing from wind-pollinated angiosperm flowers? a. anthers b. sepals c. fruits d. petals e. ovaries

Answers:d. petals


Answers:It's best for you to study diagrams of the life cycles of these plants so you can understand better. For instance, in angiosperms the sperm is a nucleus that the pollen contains. It goes down through the pollen tube to the ovule of the flower. The egg is a nucleus inside a cell in the ovule. Look at the diagram to see: http://mac122.icu.ac.jp/gen-ed/higher-plants-etc-gifs/10fl-plant-life-cycle.JPG Here's a similar diagram for a gymnosperm: http://www.mun.ca/biology/scarr/139447_Gymnospermae.jpg You can click directly on each of these diagrams to make them bigger.


Answers:Aloe vera is an Angiosperm plant . The scientific classification is as under = Kingdom = Plantae ( All plants ) Division = Spermatophyta ( Seed bearing plants ) Sub- Division = Angiospermae ( seed bearing and flowering plants . Besides, the seeds are enclosed in fruits . So seed bearing as well as fruit bearing plants . Class = Monocotyledonae = Single cotyledon in the seed . Floral parts are three in number or in multiple of three ( 6 or 9 ), leaves often show Parallel venation . Kindly click on the link below to learn more about it= http://en.wikipedia.org/wiki/Aloe_vera Click on the links below to learn about Angiosperms = http://en.wikipedia.org/wiki/Angiosperm http://angiosperm-angiosperm.blogspot.com/2007/11/angiosperm.html Thank you !

From Youtube

gymnosperms and angiosperms :

Gymnosperms and Angiosperms - Lab 5 :Bio 153 Lab 5