Examlex
Around ________ Mayan towns evolved into cities, where chieftains transformed themselves into kings.
Enzyme
a protein that catalyzes chemical reactions within living organisms, speeding up the rate at which these reactions occur without being consumed in the process.
Photosynthesis
A process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Equation
A mathematical statement that asserts the equality of two expressions, usually represented by the symbol "=".
Worms
Malicious software programs that replicate themselves in order to spread to other computers, often causing harm by exploiting vulnerabilities.
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