It says “reaction progression” on the bottom of the graph but i couldn’t fit it in the picture.
which of the following best describes what is happening in this graph?
a) reaction x used a catalyst.
b) reaction x is much slower than the original reaction.
c) the original reaction releases more energy.
d) reaction x required more energy.

Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed