Kata Tjuta, sometimes written Tjuá¹¯a (Kata Joota), and also known as Mount Olga (or colloquially as The Olgas), are a group of large domed rock formations or bornhardts located about 365 km (227 mi) southwest of Alice Springs, in the southern part of the Northern Territory, central Australia.ata Tjuta, sometimes written Tjuá¹¯a (Kata Joota), and also known as Mount Olga (or colloquially as The Olgas), are a group of large domed rock formations or bornhardts located about 365 km (227 mi) southwest of Alice Springs, in the southern part of the Northern Territory, central Australia.
Chemical messengers which are released into the blood to be transported throughout the body. An (Endocrine/Exocrine) gland is a ductless gland that empties its hormones into the extracellular fluid, from which it enters the blood. Endocrine glands. These glands do not have ducts.
Endocrine glands are also called ductless glands, because they secrete hormones directly into the bloodstream. In contrast, exocrine glands release their secretions through ducts (for example, the sweat glands produce fluid that flows to the skin's surface through tiny tubelike sweat ducts). Hormones can be considered chemical messengers. They are targeted at specific cells in the body, and their arrival in those cells causes specific activities to occur. One of the major tasks of hormones is to coordinate the activities of organ systems.