What is the body's last and most complicated line of defense against infection? a. digestive systemb. immune systemc. circulatory systemd. endocrine systemuser: the diseases ringworm and athlete's foot are caused bya. bacteria. b. parasitic worms. c. fungi. d. viruses.

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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)

The frequency in wich you perform certain exercise depends on the blank of the exercise