Describe the pathway that urine travels through the excretory system. include the relevant tissue layers in each excretory system organ that allows urine to move through the system and be stored.

Urine is the fluid that is formed in the uriniferous tubules of the kidney.. From here, it goes to the renal pelvis to the ureter.

ureter's function is to transport urine from the kidney to the urinary bladder as it has a mucosa layer that performs peristalsis.

the urine, on reaching the bladder moves out from our body or is excreted via the urethra. the urinary bladder has an epithelial layer of tissue that is able to stretch so as to store a large amount of urine.

Competition. interaction among organisms that compete for the same natural resource (food, shelter, water, space) in an ecosystem. predation. an interaction in which one organism kills another for food. predator. prey. symbiosis. mutualisum. commensalisum. parasitisum.

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