A.ORGANISMis anycontiguouslivingsystem, such as avertebrate, insect,plantorbacterium. All known types of organism are capable of some degree of responsetostimuli,reproduction,growth and developmentand self-regulation.

B. CELL is the basic structural, functional and biological unit of all knownlivingorganisms. Cells are the smallest unit of life that canreplicateindependently, and are often called the "building blocks of life"

C. TISSUEis a cellular organizational level intermediate between cellsand a completeorgan. A tissue is an ensemble of similar cells from the sameoriginthat together carry out a specific function.

D. ORGAN is a group oftissuesthat perform a specificfunctionor group of functions.

E. ORGAN SYSTEMis a group oforgansthat work together to perform one or more functions. Organs make up anorganism. In the human body, major systems are thecirculatory system, therespiratory system, thenervous systemand thedigestive system.

F. DECOMPOSE to cause something (such as dead plants and the bodies of dead animals) to be slowly destroyed and broken down by natural processes, chemicals, etc. to cause something (such as a chemical) to be separated into smaller or simpler parts

G. MICROSCOPE is aninstrumentused to see objects that are too small for the naked eye. The science of investigating small objects using such an instrument is calledmicroscopy.Microscopicmeans invisible to the eye unless aided by a microscope.

MICROSCOPE

REFRIGERATION

Theprocessof keeping an item below roomtemperatureby storing the item in a system or substancedesignedto cool orfreeze. The mostcommonformof refrigeration is provided bysystems. This is the technique by which we keep the temperature of the given space lower than its surroundings or environment. The heat is removed from the substance to be cooled and transferred to air, water or other cooling medium. To remove the heat from the given space we evaporate a volatile liquid by lowering its pressure During this process the liquid becomes vapor by taking heat from the system, making it cool.

Who invented the Refrigeration System?Frederick Jones

History of Refrigeration

The seasonal harvesting of snow and ice is an ancient practice estimated to have begun earlier than 1000 B.C.A Chinese collection of lyrics from this time period known as the Shih king, describes religious ceremonies for filling and emptying ice cellars. However, little is known about the construction of these ice cellars or what the ice was used for. The next ancient society to harvest ice may have been the Jews according to the book of Proverbs, which reads, As the cold of snow in the time of harvest, so is a faithful messenger to them who sent him. Historians have interpreted this to mean that the Jews used ice to cool beverages rather than to preserve food. Other ancient cultures such as the Greeks and the Romans dug large snow pits insulated with grass, chaff, or branches of trees as cold storage. Like the Jews, the Greeks and Romans did not use ice and snow to preserve food, but primarily as a means to cool beverages. The Egyptians also developed methods to cool beverages, but in lieu of using ice to cool water, the Egyptians cooled water by putting boiling water in shallow earthen jars and placing them on the roofs of their houses at night. Slaves would moisten the outside of the jars and the resulting evaporation would cool the water. The ancient people of India used this same concept to produce ice. The Persians stored ice in a pit called a Yakhchal and may have been the first group of people to use cold storage to preserve food. In the Australian outback before a reliable electricity supply was available where the weather could be hot and dry, many farmers used a "Coolgardie safe". This consisted of a room with hessian "curtains" hanging from the ceiling soaked in water. The water would evaporate and thereby cool the hessian curtains and therby the air circulating in the room. This would allow many perishables such as fruit butter and cured meats to be kept that would normally spoil in the heat.

When did Refrigeration come?Year 1775

1. Guiltis acognitiveor anemotionalexperience that occurs when a personrealizesorbelievesaccurately or notthat he or she has compromised his or her own standards of conduct or has violated amoralstandard, and bears significant responsibility for that violation.

2. Whimper : to make a quiet crying sound: to complain in a weak or annoying way

3. Accommodate : to provide room for (someone) : to provide a place to stay and sleep for (someone): to have room for (someone or something): to do something helpful for (someone) : to provide what is needed or wanted for (someone or something)

4. Colleague : a person who works with you : a fellow worker

5. Acquire : to get (something) : to come to own (something) : to come to have (something): to gain (a new skill, ability, etc.) usually by your own effort