Final answer:
The crescent and bite sign are terms used in biology to describe certain characteristics related to parasites and insect bites. The crescent sign is seen in malaria infections, while the bite sign refers to the inflammation around an insect bite or sting.
Step-by-step explanation:
The crescent and bite sign can be found in biology in relation to the study of parasites. The crescent sign is a characteristic feature of the malaria parasite, Plasmodium falciparum. It refers to the shape of the infected red blood cells, which appear curved or crescent-shaped. The bite sign, on the other hand, is a term used to describe an inflammatory response around the site of an insect bite or sting.