Coat Color And Grooming Chihuahuas come in two different coat types: smooth and long. The smooth-coated Chihuahua has a smooth, shiny coat that fits close to the body with a ruff of thick, longer hair on the neck. The hair on the head and ears is thinner, and the tail is furry.
Heterospory is the production of spores of two different sizes and sexes by the sporophytes of land plants. Heterospory was evolved from isospory independently by several plant groups in the Devonian period as part of the process of evolution of the timing of sex differentiation.eterospory was evolved from isospory independently by several plant groups in the Devonian period as part of the process of evolution of the timing of sex differentiation.
1 A homoplasy is a shared trait found among different taxa but inferred to have been independently derived and not to have occurred in their common ancestor (i.e., a trait considered to be the same emerged in different taxa independently of each other). 2  An example of this is homeothermy in birds and mammals.implicity is often secondarily derived. For example, the absence of mitochondria in the anaerobic protist Entamoeba histolytica is a result of their secondary loss, and when considered in the context of eukaryotes as a whole, is a derived trait.