Cleaning dirty needles prior to use helps prevent the spread of HIV. When using bleach, the user must rinse out all the blood first and then fill the needle and syringe with full-strength bleach three times for to seconds.

Match the following terms and definitions. the transformation of a larva to an adult; occurs only in animals having great differences in form between the larva and adult pupa 2. type of mammal that lays eggs monotreme nymph the part of certain insect life cycles in which the young animal has no wings or reproductive organs the developmental stage between larva and adult in insects undergoing metamorphosis metamorphosis 5. the male gonad which produces sperm testes