Which is a description of achondroplasia? a. enlargement of extremities. b. defective cartilage formation that affects bone growth. c. tumor of the sella turcica. d. abnormal formation of cartilage in an adult. e. hyperfunctioning of pituitary gland.

Blood cells bring oxygen to cells and take carbon dioxide away. true or false

What is one technique to a person get proper sleep? eat a heavy meal before bed. exercise intensely before bed. practice relaxation breathing before bed. use electronics before bed.

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)