The evolution of plants has resulted in increasing levels of complexity‚ from the earliest algal mats‚ through bryophytes‚ lycopods‚ ferns to the complex gymnosperms and angiosperms of today. While the groups which appeared earlier continue to thrive‚ especially in the environments in which they evolved‚ each new grade of organisation has eventually become more "successful" than its predecessors by most measures. Probably an algal scum formed on land 1‚200 million years ago. In the Ordovician period
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How Trees Improve the Environment Trees are ancient living organisms that existed since the creation of the Earth and have been crucial to the Earth’s ecosystem. The age of a tree is determined by cambium‚ a layer of growing bark‚ which forms a ring in the wood of the tree. Each ring of cambium‚ tells the age of the tree. The climate can also determine how fast a tree grows. For instance‚ in cool climates‚ cambium only grows in the spring and summer. But there are some cases where you cannot
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Plant Adaptation Investigation Observations Samples of plants were obtained during the campus tour. In order survive in the harsh climate of deserts‚ plants must adapt in function‚ reproduction‚ support‚ and defense. Although plants on campus are watered frequently‚ they live in a mostly xeric environment. Three types of cacti were observed: organ pipe‚ prickly pear‚ and saguaro. The organ pipe contains no leaves and has narrow stems that carry out photosynthesis and store water. Neither the
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Oak Trees Choosing a location: The mighty‚ majestic oak tree has‚ throughout the centuries‚ been the subject of story‚ song and proverb. More than 80 species of this beautiful tree are found in North America. All oaks are deciduous trees with furrowed bark. When choosing your location pick a spot that will accommodate a full grown oak‚ they can get to be 60-80 feet tall and 60-100 feet wide at maturity. Do not plant too close to structures‚ streets‚ or sidewalks . Planting directions: 1) Dig
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a schoo Chapter 35 The Plant Body 1. Describe and compare the three basic organs of vascular plants. Explain how these basic organs are interdependent. The three basic organs of a vascular plant are the stems‚ leaves‚ and roots. The stems consist of nodes‚ where leaves attach‚ and internodes between the nodes. The stem is responsible for elongation of the plant and acts as a central axis for other organs to attach to. The roots help to anchor the plant as well as absorb water and nutrients
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Solar Panels Vs. Trees Many consumers have several questions if whether or not if their neighbors can block access to their solar panels with shading. In the case of Solar vs. Trees‚ the trees are the ones that block the solar panels from direct sunlight. Both these men are environmentally friendly. “In terms of loving the environment it seems that neither one can top the other.” (NPR 62) When it comes to the decision of cutting down trees to get sunlight for solar panels‚ which one seems to have
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FORESTS Introduction Trees are mankind lifeline. If they are destroyed‚ there is no way that human beings can survive. From the oxygen that we breathe in‚ the food that we eat‚ to the clothes we wear‚ we owe it all to the trees. Not only this‚ trees act as purifiers of air and receptacles of our waste products. Trees have great economic value too. We get fuel‚ fodder‚ timber‚ medicines and numerous other valuable products from the trees. It is‚ therefore‚ not surprising that trees were given great importance
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Introduction Man has propagated plant material almost as long as he has cultivated the land to produce food. For a long time‚ plant material was propagated mainly by using the seeds of existing plants. Better methods were discovered over time‚ methods that allowed the farmer to retain the desirable qualities of the plant material‚ while eliminating some of the less desirable qualities. Through these methods‚ the farmer was also able to eliminate the variations between plants of the same cultivar and produce
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What Goes Around Comes Around You have heard the term ’What goes around comes around.’‚ right? Also known as karma? Alternately‚ should something be said about the term karma? Most individuals are acquainted with the notion of karma‚ but there are a couple of key focuses that should be discussed. According to Encyclopedia Britannica‚ karma is a widespread law in which great or consequential activities figure out the perspective modes of a person (Encyclopedia Britannica). It is said to be one
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more than 200 programs supported by Ohio Humanities. Programs included living history presentations‚ scholarly discussions‚ symposiums‚ exhibits‚ and book festivals. Highlights of 2015 included: Trees in Trouble Support by Ohio Humanities helped film producer Andrea Torrice to create the documentary "Trees in Trouble." It premiered December 2015 on Cincinnati public television followed by additional Ohio PBS broadcasts. In April 2016‚ the film broadcasted to a national audience by PBS stations. The
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