Answer the question Essay Example | Topics and Well Written Essays - 250 words - 22

Answer the question - Essay Examplethe male sperms develop to be small, swifter and brook a short life span while the female eggs grow bigger, less mobile and have a long lifespan (Neal 336).The quad alternative reproductive strategies include (Sloman, Rod and Balshine 300) (1) Reversible ART this is where nonsymbiotic animals can change forth and back between patterns (2) Sequential ART the freelance animals change from one scheme to another at a particular time in their life span (3) Plastic ART in this strategy, the independent animals can change the plan throughout their life (4) Fixed ART in this strategy, independent animals adopt a single scheme throughout their life.5) The primitive anatomy of sharks has not changed much over the last 360 million years. List five morphological or physiological characteristics of sharks that have made the shark build such an evolutionary success. For each characteristic state the advantage that it gives- Sharks swim with their mouths ope n with branchia rakers upright and enlarged across the openings between the gill arches to build a sieve. The sharks are able to feed on zooplankton, small fish and fish eggs (Fowler, Sharks, Rays & Chimaeras 253).6) What are the problems with our current Linnean system of vertebrate classification? How have new cladistic and phylogenetic techniques helped us to improve our knowledge of vertebrate evolutionary relationships?The current classification of Linnaeus system puts reptiles and amphibians in divergent classes that indicate their maximal variety of biological characteristics and lifestyles (Schneider, Krasny, Morreale & Tolpa 7). The phylogenetic technique gives evolutionary trees that provide the basis for biodiversity or comparative of a broad range of evolutionary difficulties. The cladistics assists in the production of phylogenetic information utilized to generate the evolutionary trees (Laurin