Inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli. This is what happens in the alveoli during gas exchange
The sea food is strongly recommended o a person with bipolar disorder eat to reduce effect of arachidonic acid. The sea food is any sea life regarding as food by human. Example fish,some species of molluscs, crustaceans and echinoderns. These sea foods have high amount of omega 3 fatty acid
Cells are called the building blocks of life because they are the basic unit for all living organisms, and must be present for life to exist. ... The tiny parts of each cell are called organelles, which means "little organs" in Latin. Each cell in the human body is a small and simple form of life.
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Physical change means that only the form / shape of the substance is changed , not the chemical properties. So here, cutting of paper is a physical change since it's shape is changed but the chemical properties remain the same.
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A closed system is a physical system that does not allow transfer of matter in or out of the system, though, in different contexts, such as physics, chemistry or engineering, the transfer of energy is or is not allowed.
