The flexor muscles in your arm help you bend your elbow.

The biofilm on the surface of the pond is teeming with microorganisms.

Biofilm is a complex structure formed by microorganisms.

The doctor explained that lipoprotein is a type of protein that carries cholesterol in the blood.

I cannot tolerate back-stabbing in any form.

Her field of endeavor is in the realm of environmental science.

She is not so much a boss as a partner.

The small town was in fear due to rumors of devil worship.

Exfoliation helps remove dead skin cells and reveal smoother, brighter skin.

Despite being best friends, John decided to backstab Mike by spreading false rumors about him.