The answer is B, less sulfer became present in Earth's soil.
<span>26. A sense organ is made up of receptors and other cells that help gather information.
27. Salmon reproduce by excess fertilization because a female salmon releases her eggs onto the riverbed before the male covers them with his sperm</span>
You are correct, it is an embryo. I'm pretty sure the child is called a fetus for the rest of the pregnancy.