Annelids-In earthworms, respiration is through the skin, but gills are used to exchange oxygen and and carbon dioxide in other types of annelids. Arthropoda-Some arthropods have gills and some have a tracheal system to obtain oxygen and then get rid of carbon dioxide.nnelids-In earthworms, respiration is through the skin, but gills are used to exchange oxygen and and carbon dioxide in other types of annelids. Arthropoda-Some arthropods have gills and some have a tracheal system to obtain oxygen and then get rid of carbon dioxide.
Cistus, with its many hybrids and cultivars, is commonly encountered as a garden flower. The common name rockrose is applied to the species, a name also shared by the related genera Halimium, Helianthemum and Tuberaria, all in the family Cistaceae. The common name gum cistus is applied to resin-bearing species, especially C. ladanifer.
Moss Roses. The roses of Victorian England. Moss Roses are actually Centifolia Roses and Damasks that have developed a distinctive fragrant moss-like growth on the sepals, adding great elegance to the flowers.Moss Roses come in almost all colors and some varieties are repeat blooming.oss Roses. The roses of Victorian England. Moss Roses are actually Centifolia Roses and Damasks that have developed a distinctive fragrant moss-like growth on the sepals, adding great elegance to the flowers.