  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 is defined as the process of expelling waste matter, or the waste matter expelled by this process. 1  When a person goes to the bathroom to urinate, this is an example of excretion. 2  Urine is an example ofexcretion. 3  the act or process of excreting.  waste matter excreted; sweat, urine, etc.