Human Ecology

Can you explain why sustenance strands r arly have more than four trophic aims ? Your explanation should occlude why at that place so some sort out carnivores such(prenominal) as eagles , hawks , tigers , and black-and-blue sharks . How does ecological efficiency relate to the move up discussion grain-fed beef What figures (from either the powerpoints or text ) assistant you answer this question ? Hint : The figures illustrate slide fastener watercourse (and muscularity loss through an ecosystemNormally in that location atomic number 18 moreover up to four trophic aims because postal code is limiting at the 4th trophic take aim of food chain . This is the close why there argon only few carnivores (Eagles , hawks , white sharks ) that survive in the 4th tropic rail off because they are having difficulty conserveing the dynamism requirement from the limiting energy (food limits . With to each one purloin in the direct of food chain , there is a signifi hind endt difference in the number of members of that trophic level . For example from the first level to the second level , there are vast song of plants compared to the 2nd trophic level such as the insects that take in them . This liberal drop-off in the number for every rise in the trophic level is related to the amount of energy available in each level . The reason for this is rattling govern by the 2nd law of thermodynamics which basically states that in converting from one energy form to another there are always round losses . So one can never choke the same amount of energy as much as what was put . Animals could not obtain as much as 100 of the energy it eats . fit in to the Answers .com (2007 , it is more similar just 10 of the food that an sensual can drink . So because of this inefficiency in converting from the energy of one trophic level to another ! , there is a progressive decrease of energy level as we move from start trophic level to higher levels . So eventually at the fourth level it reaches a maximum limit to sustain their energy needsWhat are red coral let downs ? How are they form ?

Of what value are they ? why are they vulnerable to alter ? What are the harmful impacts of gentle activities on coral reefsAccording to the Wikipedia (2007 , coral reefs , which are also know as sea gardens , are structures consisting of HYPERLINK http /en .wikipedia .org /wiki / chromatic \o Coral coral skeletons built upon coral skeletons . They contract in tropical seas in the HYPERLINK http /en .wikipedia .org /wiki /Photic_zone \o P hotic zone photic zone , where there is easygoing HYPERLINK http /en .wikipedia .org /wiki /Ocean_ rebel_ reel \o Ocean surface wave wave action , not so sacrosanct it bust the reef apart yet strong comely to trouble the water and deliver sufficient food and atomic number 8 . They are formed from reef building corals and other being that deposits calcium carbonate . Through symbiosis with unicellular algae called zooxanthellae , reef building corals houses polyps that become the source of formation of reef communities . These algal cells within the tissues of the coral polyps carry out photosynthesis and produce...If you privation to pick out a full essay, order it on our website: OrderEssay.net

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