Answer:
Two ureters.
These narrow tubes carry urine from the kidneys to the bladder. Muscles in the ureter walls continually tighten and relax forcing urine downward, away from the kidneys. If urine backs up, or is allowed to stand still, a kidney infection can develop.
Explanation:
Answer:
they have certain functions and or adaptations that allow them to move without spines
Explanation:
it is grasshopper because they donot have backbones
Answer:
A blood sample is taken. I hope this helps! :)