The Human Liver Structure and functions
The Human liver is an abdominal glandular organ in the digestive system. It is located in the right upper quadrant of the abdomen, under the diaphragm
The Lungs Structure and Functions
The lungs are two sponge-like, cone-shaped structures that fill most of the chest cavity which provide oxygen from inhaled air to the bloodstream
The Kidneys Structure and Functions
The kidneys are bean-shaped organs located at the back of the abdominal cavity, one on each side of the spinal column. Most people have two kidneys and their function is to maintain the body’s chemical balance by excreting waste products and excess fluid in the form of urine. Kidney’s Function The kidneys filter extra water and
Human Heart Structure and Functions
The Human heart is a hollow, muscular organ that pumps blood through the blood vessels by repeated, rhythmic contractions.
The Stomach Structure and Functions
The stomach is a muscular, elastic, pear-shaped bag, lying crosswise in the abdominal cavity beneath the diaphragm. Its main purpose is digestion of food through production of gastric juices which break down, mix and churn the food into a thin liquid. The stomach is situated between the oesophagus and the small intestine in the upper abdomen. The stomach is not the
Human Eye and the Sense of Sight
The human eye is the organ of vision. It has a complex structure consisting of a transparent lens that focuses light on the retina.
The intestines Structure and Functions
The intestines are located between the stomach and the anus and are divided into two major sections: the small intestine and the large intestine.
Human tongue and the sense of Taste
The receptors for taste, called taste buds, are situated chiefly in the tongue, but they are also located in the roof of the mouth and near pharynx
Human Ear Brief anatomy
The ear is the organ of hearing. The outer ear protrudes away from the head and is shaped like a cup to direct sounds toward the tympanic membrane
The Human Skin as a sense of touch
The sense of touch is distributed throughout the body. Nerve endings in the skin and other parts of the body transmit sensations to the brain.
The nose and Sense of Smell
The nose is the organ responsible for the sense of smell. The cavity of the nose is lined with mucous membranes that have smell receptors
ROCKS AND THE ROCK CYCLE
The rocks of the earth are very varied in composition, depending on the way they were formed and the time they were formed.
THE ORIGINS OF EARTH AND MATTER
The matter may be understood as anything that has a weight and mass. It is as the very origin of anything you may know to exist, from the microscopic objects to the entire earth and universe.
3 Major Weathering Types in the Soil Studies
Weathering is the process of the Soil formation resulting from the break-down of the parent materials.
4 Major Elements in the Components of Soil
There are four main components of soil, which are: those resulting from the-‘ breakdown of rocks, organic matter, water and air.
Soil pH | SOIL ACIDITY AND ALKALINITY
Soil pH is a measure of the acidity vs the alkalinity of the soil, and determines the capacity of that soil to exchange nutrients with plants growing in it.