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The process begins when excess fertiliser, which has been used for farming, is flushed into rivers or lakes by rainwater. The fertiliser then provides nutrients such as nitrates which allow plant life in ...

Molecules or ions which improve the activity of an enzyme are classified as cofactors, coenzymes, or prosthetic groups. Cofactors are often ions, and coenzymes and prosthetic groups are larger molecules. ...

An organism's genotype is the complete set of genes that they inherit from their parents (half from each parent). Their phenotype is the set of characteristics that are seen/observed, as a result of their...

1. Made of structrues called phospholipids with a polar, hydrophobic head region and a non-polar hydrophillic region.

2. Formation of a bilayer.

3. Contains cholestero...

A hormone is a chemical messenger which travels in the blood.  Hormones cause other tissues and organs to either produce other hormones or carry out chemical reactions. Water-soluble hormones cause this b...