A cancerous tumor derived from bone:

An estrogen receptor assay is BEST described as a test for:

Bacterial infection of the middle ear:

Radioresistant tumor is a tumor:

Eye structure that is transparent and biconvex and focuses light on the retina:

Outward extension of the shoulder bone:

Agent or device used in radiation therapy for tumors:

Example of genetic material that causes cancer:

Which is the best description of the function of ATP? 

The distinguishing feature of the lipid category of biological molecules is all lipids are hydrophilic.