Answer:
B
Explanation:
Because the roots of the tree were what where controling the erosion
Hope this helps :))
Human chorionic gonadotropin (hCG) is secrete by the embryo early in pregnancy to keep the corpus luteum for dying. This positive feedback will maintain the corpus luteum, which secretes Progesterone and Estrogens throughout pregnancy, in order to keep the endometrium well to nourish the embryo/fetus.
Microscopes allowed scientists to observe Prokaryotic cells which make up Bacteria and Archaea. These cells are small and contain no membrane- bound organelles. It allowed them to observe Eukaryotic cells with a nucleus and membrane-bound organelles that perform different life functions.
Answer:
Explanation:
Tunica media; contains connective tissue that provides structural support
Answer:
round worms reproduce sexually
the nervous system of a roundworm contains a brain and nerve cords
