Liver secretes bile which is then stored in gall bladder. Bile enters the duodenum via the bile duct. Bile emulsifies lipids, transforming large lumps of lipids into tiny droplets, which provide a larger surface area for digestion. This allow lipid digestion to proceed more rapidly. Bile contains bile acids, which are critical for digestion and absorption of fats and fat-soluble vitamins in the small intestine.Many waste products, including bilirubin, are eliminated from the body by secretion into bile and elimination in feces.
An oil-spill is the massive release of liquid petroleum hydrocarbon into the environment. It usually occurs in the sea. It is due to human activity and causes pollution. The environment is highly affected on this situation. Large-scale oil-spill affects the environment in various ways such as death of several sea creatures such as fishes. It could also lead to contamination of our seafood. and it also cause a long-term damage to the food chain.
if the Earth had 5% more oxygen in the atmosphere Global warming will happen.
Theories explain phenomena, whilst laws are generalizations which characterize them.