Because the Epiglottis covers the Larynx
C. Ball and socket joints
Just took the test hope this helps :)
Trigone of the urinary bladder is made from three orifices, two <span>ureteric orifice and one urethra orifice.
Ureteric orifice is made by ureter from the left and right kidney. It's the place where urine enters the bladder.
Urethra orifice is connected to urethra and it's where the urine comes out of the bladder.</span>
Rbc dont have a nucleus to pack more haemoglobin. it also has a biconcave shape to increase surface area.... idk about the other two. sorry
