Mark, a 10-year-old, has a lot of ear pain. He does not want anyone to touch it and is crying in pain. The ear canal is swollen and exudate is present. The TM is normal. Mark should be instructed to do :

Which is the correct order pf events that occur during conception? a. ovulation, implementación , gfertilization zygote formationb. ovulation fertilization zygote formation implantation c. fertilization ovulation implantation zygote formation d. fertilization zygote formation implantation ovulation

You isolate an infectious substance capable of causing disease in plants, but you do not know whether the infectious agent is a bacterium, virus, viroid, or prion. you have four methods at your disposal to analyze the substance and determine the nature of the infectious agent. i. treat the substance with enzymes that destroy all nucleic acids and then determine whether the substance is still infectious. ii. microscope. iii. culture the substance on nutritive medium, away from any plant cells. iv. treat the sample with proteases that digest all proteins and then determining whether the substance is still infectious. if you already know that the infectious agent was either bacterial or viral, which method(s) listed above would allow you to distinguish between these two possibilities? a) ib) iic) ii or iiid) iv

Andrew loves to go camping and hiking in the fall. about two weeks after his last camping trip, he noticed an expanding red, target shaped, rash on his arm. to avoid this illness, andrew should have select one: a. boiled his water before drinking. b. avoided contact with ticks. c. avoided contact with fleas found on mice. d. camped only in the spring.