No. 26 help me? Thank you!

Write a paragraph about why the respiratory system is important and we need to breathe easily. (guys i really need ) x(

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)

Write an essay describing and predicting the effects of fitness-related stress management techniques on the body. should be at least 3 paragraphs