Answer:
At the beginning of the follicular phase, the lining of the uterus (endometrium) is thick with fluids and nutrients designed to nourish an embryo. If no egg has been fertilized, estrogen and progesterone levels are low. As a result, the top layers of the endometrium are shed, and menstrual bleeding occurs.
The hole in the Ozone Layer
Answer:
Cell
Explanation:
Cell the essential membrane- bound unit that contains the key particles of life and of which every living thing are formed.
These cells collaborate with other specific cells and become the structure squares of huge multi cell living beings, for example, people and different creatures.
The levels of organization range from a single organelle all the way up to a highly structured hierarchy.cell governs all physical and chemical process in life.
Answer:
If you destroy rainforests, there will be less oxygen in the air and more carbon dioxide. Trees and plants produce oxygen so that is why.
Explanation:
Answer:D Hookworm
Explanation:
Hookworm enters the skin and then enters the blood stream and affects the lungs.
