Is a condition that can begin when the cartilage that pads bones in a joint begins to wear down.

Foods that fill your body with sugar and fat but little else, are said to contain

Group of genes that encode molecules found in all body cells, creating a biochemical “fingerprint” that serves as the “id” for cells so that they are marked as “self” a) deoxyribonucleic acid (dna) b) entry inhibitors c) major histocompatibility complex (mhc) d) non-nucleoside reverse transcription inhibitors (nnrtis)

Which food preservation method can people use at home? a. fermentation b. irradiation c. pasteurization d. thermal processing