If a solution has equal hydronium and hydroxide ions, the solution is considered neutral. A neutral pH is 7.
Pretty sure it’s B this fish because they are getting tested to see if that’s why they are dying or not
Answer:
The correct answer is D. Umbilical cord
Explanation:
The umbilical cord connects the fetus to the placenta and through it exchanges nutritional substances as well as oxygen-rich blood. The umbilical cord is maintained throughout gestation until the moment of birth, when it is cut and leaves a permanent scar, the navel. The umbilical cord is responsible for breathing and feeding the fetus until the moment it is born, so any failure or blockage in the circulation of oxygen and nutrients through the cord can lead to injury or even death of the embryo. It also serves to remove waste and carbon dioxide (CO2).
The bones that are like a ball and socket are The hip bones
These bones include the femur and this bone rests in a bowl like shape against the pelvis
I hope this helps! Let me know if you don't understand!