  Sexual reproduction in fungi usually involves two different mating types. Because gametes of both mating types are about the same size, they are not called male and fema â¦ le.Rather, one mating type is called + (plus) and the other â (minus).ecause gametes of both mating types are about the same size, they are not called male and fema â¦ le. Rather, one mating type is called + (plus) and the other â (minus).
Defecation is normally assisted by taking a deep breath and trying to expel this air against a closed glottis (Valsalva maneuver). This contraction of expiratory chest muscles, diaphragm, abdominal wall muscles, and pelvic diaphragm exerts pressure on the digestive tract.
excretion. 1. the act, process, or function of excreting. Ordinarily, what is meant by excretion is defecation, the evacuation of feces. Technically, excretion can refer to the expulsion of any matter, whether from a single cell or from the entire body, or to the matter excreted.. the act, process or function of excreting. 2. material that is excreted. Ordinarily, what is meant by excretion is the evacuation of feces. Technically, excretion can refer to the expulsion of any matter, whether from a single cell or from the entire body, or to the matter excreted.