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).
Bc you should know i guess
The A DNA function in a cell is stored
If the animals are not closely related, but the structures are meant to serve the same function (structure determines function!) then the structures are analogous. The difference between analogous and homologous is that in analogous structures, the creatures are not closely related but the structure serves the same purpose (like bat wings/bird wings) and homologous structures are similar structures directly as a result of ancestry.
