<span>The organism is multicellular, has tissue organization, and has no cell wall.</span>
I think the correct answer would be A. The yolk sac becomes the placenta. It is membranous sac that is attached to the embryo. It provides all the nutrition and the blood cells needed by the embryo. It is also called the umbilical vesicle.
In order to grow your cells need to expand and divide in order for your body to grow.
Answer:
Two elements
Explanation:
Nitrogen and Oxygen only, (NO)
