San Diego has on average 146 sunny days and 117 partly cloudy days a year. The average annual precipitation is less than 12 inches (300 mm), resulting in a borderline arid climate.
Skeletal muscle makes up the bulk of muscles in the body. See also skeletal muscle groups. A whole skeletal muscle is considered an organ of the muscular system. Each organ or muscle consists of skeletal muscle tissue, connective tissue, nerve tissue, and blood or vascular tissue. Skeletal muscles vary considerably in size, shape, and arrangement of fibers.
Liver vs Kidney. Liver and Kidneys are both organs in the organisms. Especially vertebrates have a well-developed organ system among other animal groups. A collection of different types of tissues organized to perform a particular function or functions is known as an âorganâ. Therefore, a tissue is the functional and structural unit of an organ. An organ system is composed of a group of organs that performs a particular function in the body. Basically, the vertebrates have 11 principal organ systems, which perform major activities in the body and keep the vertebrates alive.