A) Only one opening: they expel undigested material through the mouth.
Peritoneal cavity
a simple low cost invitro method to study about absorption in intestine
when i had my first miscarriage the fetal sac came out in the toilet and it looked like a little veiny blood sac. it was really small almost like a bubble.
sac
Sac fungi get their name because of their asexual spore production, they produce their spores in pod/sac-like structures called asci.
A food storage sac in segmented worms, such as earthworms, is called a crop. The crop temporarily stores ingested food before it moves on to the gizzard for grinding. This helps regulate the release of food into the digestive system for more efficient processing.
your balls!
gago
It is the scrotum.
The bladder.
A sac-like organ is a structure in the body that is shaped like a pouch or bag. Examples include the gallbladder, which stores bile; the urinary bladder, which collects urine; and the intestines, which have sac-like segments for digestion and absorption. These organs often have elastic walls that can stretch to accommodate and store various substances.