Role of the Circulatory System: A network of blood vessels that distributes gases, nutrients, waster products, and cell products (hormones) and distributes heat Unicellular organisms such as bacteria do not need a circulatory system since they are in direct contract with their environment and activity can take place across the cell membrane Larger organisms need…
1. Return Address (Letter Head) The return address is necessary for the receiver of the letter to know where to send a reply. 2. Date Line The date line is the line that indicates that date the letter was keyed. 3. Inside Address The inside address is the name and address of the recipient of…
Notice when a vehicle has driven by nowadays, that it is so much quieter than those loud oldies that pour out the blue smoke. Ever wonder just what is underneath a vehicle that makes the new ones so much cleaner. It is called a catalytic converter. The main function of a catalytic converter is to…
The Lymphatic System is very important. It helps with the Cardiovascular system, and our immune systems. The Lymphatic System is made up of two semi-independent parts. One is a network of lymphatic vessels. The other part is various lymphoid tissues and organs all over the body. The functions of the Lymphatic System transporting fluids that…
Invertebrates, kidneys are the two major organs of excretion. Excess water, toxic waste products of metabolism such as urea, uric acid, and inorganic salts are disposed of by kidneys in the form of urine. Kidneys are also largely responsible for maintaining the water balance of the body and the pH of the blood. Kidneys play…
It has been a decade in the making, but the mountain bike has become a passion for many people. Along with this passion it has also become the most environmental way to get from point A to B. It has gone through a very intense evolution process over the past decade. It all started with…
FOUR MAIN PARTS TO SOIL 1. Minerals – comes from the weathering (chemical, physical) of the parent material. The inorganic material in soil is made up of rock material mainly. It can be sand, silt or clay. The particles in each of these rock types are ordered from larger to smaller with sand being the…