Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
When a lineage splits into multiple line of descents, then, it leads to speciation. It is a process by which a single population evolves into different species. The process of speciation leads to the development of two or more species as the lineages are splitted. These two evolved species are genetically independent.
Hence, the blank can be filled with 'speciation'.
An enzyme is an organic catalyst.
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What is an enzyme?</h3>
Enzymes are proteins that help speed up metabolism or the chemical reactions in our bodies.
They build some substances and break others down.
All living things have enzymes. Our bodies naturally produce enzymes.
But enzymes are also in manufactured products and food.
Examples of specific enzymes:
Amylase: In the saliva, amylase helps change starches into sugars.
Maltase: This also occurs in the saliva, and breaks the sugar maltose into glucose.
Trypsin: These enzymes break proteins down into amino acids in the small intestine.
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Answer:
Answer is bile
Cholecystokinin is secreted by cells of the upper small intestine. Its secretion is stimulated by the introduction of hydrochloric acid, amino acids, or fatty acids into the stomach or duodenum. Cholecystokinin stimulates the gallbladder to contract and release stored bile into the intestine.
