vacuole
Anything that is a large bulbous sack... the best bet would be the gall badder.
Tuckerbag
The fluid-filled sack that acts as a storage area is called a "blister" or "bursa," depending on the context. Blisters are small pockets of fluid that form beneath the skin, typically due to friction or injury. Bursa, on the other hand, are small fluid-filled sacs located near joints that reduce friction between tissues. Both serve as protective and cushioning structures in the body.
tuckerbag
Tucker bag
Tucker bag
alveolus
The water and food sack.
Lysosomes. These organelles contain digestive enzymes within itself and can digest pathogens and worn out cell parts. It is also known as a suicide sack because when given the orders, it can burst and destroy the cell from inside out in times of mutations.
Nucleus in an animal cell is a membrane covered sack which contains the cell's DNA. The DNA is the boss of the cell, and has the directions for forming a new cell.
Lysosomes. These organelles contain digestive enzymes within itself and can digest pathogens and worn out cell parts. It is also known as a suicide sack because when given the orders, it can burst and destroy the cell from inside out in times of mutations.
the eggs are produced within the lemon shaped sack, which is part of the worm.