You forgot to include the following choices but no worries I did this question before and the answers are:
advances in technology
increases understanding on environment
etc
A good conclusion restates the hypothesis so that the reader will get was was the hypothesis made by the person and weather it was correct or not, if not then it has logical explanation to it. Conclusion also tells/summary of your project/essay
The answer to this question would be: ureter
Ureter is the long tubular duct made of epithelial cell that connects the kidney and the bladder. Urine will pass through the ureter to go into the bladder. Urine flow might be obstructed if there was a stoned formed in the kidney. In this case, the patient might feel colic pain to the flank. Urethra will be the tubular organ that goes from the bladder to penis/vagina.
Water makes up 90% of the body.
