What are CD4 cells? A. HIV treatment cells B. T cell helpers that are destroyed by HIV C. experimental AIDS vaccine D. Opportunistic cells that destroy the immune system

2%? i tried finding the exact sorry if it's not 100% correct ; -;

linnaeus is the father of taxonomy, which is the system of classifying and naming organisms. one of his contributions was the development of a hierarchical system of classification of nature. today, this system includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.