Botanists (plant biologists) seem to like changing their minds about what groups plants belong to even more than zoologists (animal biologists) do about animals. Question 3 Name three groups of plants that bear archegonia.

Since the first appearance of tracheophytes in the Silurian, the fossil record shows three major evolutionary transitions, in each of which a group of plants that were predominant before the transition is largely replaced by a different group that becomes predominant afterward.



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This group of plants has seeds which are hidden in cone scales rather than protected by fruit. Life cycle of a fern (Dryopteris) Dryopteris is a common fern with pinnately-compound leaves.

Gymnosperms are cone and seed bearing plants such as conifers and pine trees. They also produce their own food by a chemical process called photosynthesis, using water, carbon dioxide, and the energy of sunlight. The relationships between plant groups are still being worked out, and the names given to them vary considerably. THE MAIN GROUPS OF PLANTS This page explores some problems of plants in Nature. The following is somewhat simplified though a reasonably up to date and accurate description of the major plant groups.
They are made up of many cells. Examples include the Norfolk island pine, pencil pine and the traditional Christmas tree.

Plants are classified into smaller groups, according to shared characteristics. However, it is now known that the land plants evolved from within a group of green algae, so that the green algae by themselves are a paraphyletic group, i.e.

Answer . Three Essential Groups of Wild Edible Plants : There is no one right answer as to the order of necessities in a survival situation, in one environment water is first on your list of needs and in another environment shelter or fire would be your first on your list of needs. Answer Chapter 25 Coastal and Wetland Ecosystems Elements of Ecology 9th Global Edition Topics. All plants share certain features. Archegonium is the female sex organ that produces the female gamete or egg. Discussion.

a group that excludes some of the descendants of a common ancestor. Problem 5.

Briefly describe the life cycle of any one of them. What are the four major groups of plants and the characteristics that distinguish them? There are, of course, aesthetic considerations—one of the most basic of which is that, in planting bedding plants, you will produce a greater effect if you mass individual plants of the same type together, rather than planting them scattered about. 3) In order for plants, (and animals, for that matter), to produce offspring which are slightly different from one another, the best way to reproduce is by sexual reproduction. Plants are photosynthetic, multicellular organisms that belong to the kingdom Plantae.

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The Different Types of Plants Explained With Pictures.


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