Nineteenth century industrial factory work 

Early waves of immigrants from Northern Europe to the United States faced more hardships and discrimination than later waves from Southern Europe. 

__________ converts a ______ to its monomers.   

Muscle cells contain numerous _____________ to serve their high demand for ATP.

What type of transport involves molecules/ions/particles moving across a membrane down their concentration gradient?

Which would be an example of positive feedback?

Molecules composed of two or more different atoms are called compounds.

What function is served by motile cilia on epithelial cell surfaces? (Module 4.3C)

The region of the sarcomere that always contains only thin filaments is the

All of the following are characteristics of the epidermis except that it