Of the 20 amino acids, how many amino acids are considered essential? why are they called essential?

Si una estrella no tiene paralaje medible, ¿qué puedes inferir?

According to the tide table below what time of day will the highest tide occur?

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.