When luciferin (a substrate) and luciferase (an enzyme) react in the presence of O2, a flash of light is produced.

Which president showed signs of being disenchanted with the Vietnam War in 1963 and might have called the American advisers home?

Translate the following sentence into Spanish.  Carefully conjugate verbs.    We need to take notes in class!

Gold Star families 

The Seneca Falls Convention was held to discuss

This man was the nationalist communist leader of North Vietnam

Translate the following sentence into Spanish.  Carefully conjugate the verb.    He plays the piano on Saturdays.

Translate the following sentence into Spanish.  Carefully conjugate the verb.    She speaks Spanish.

Read the description that follows and write the infinitive in Spanish from this module which is most closely associated with it.  Write in all lowercase letters. la profesión de la profesora, la explicación de la gramática y del vocabulario, no es ESTUDIAR, no es REPASAR

High concentrations of some mercury-containing compounds can cause neurological disorders and death in  humans.