A cell has a cell wall, cytoplasm, and no nucleus.  This cell is —

Which of the following are the monomers of polypeptides?

This macromolecule contains atoms of carbon, hydrogen, and oxygen and is often ring-shaped.

A water strider is able to walk across the surface of the pond because of:

This subatomic particle has negligible mass and a negative charge.

This subatomic particle has a mass of 1 dalton and a positive charge.  

Select any that apply.  Water dissolves or mixes well with —

This macromolecule contains atoms of carbon, hydrogen, oxygen, nitrogen, and phosphorus.  

The process of forming the disaccharide sucrose from monomers requires a ______________ reaction.   

GRAMMAR FOR SPEAKING: The Simple Present vs. the Present ContinuousComplete the sentences with the words in parentheses. Use the simple present or the present continuous.Gina ________________ (leave) for work at 7:00 every morning.