Homologous structure definition

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis.b. the primary role of microbes on the planet involves causing disease in animals and humans.c. microbes produce vitamins in the intestines.d. microbes play a role in breaking down waste and decomposing dead organisms.

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the: