I beleive the answer is D, it is called the Nutrients cycle.
<span>Harnessing power from the wind is one of the cleanest and most sustainable ways to generate electricity as it produces no toxic pollution or global warming emissions. Wind is also abundant, inexhaustible, and affordable, which makes it a viable and large-scale alternative to fossil fuels. </span>
<span>10% </span>
These light and heat energy are then used for photosynthesis and other cell processes.
Plant can go through photosynthesis because they contain chloroplasts. A chloroplast is an organelle found only in plant cells and which enables photosynthesis to occur.
Insides chloroplasts, there are found structures called thylakoids also known as grana or stroma. It is these thylakoids that contain chlorophyll, the green pigment that helps capture light energy from the sun which provides the fuel to run the first stage of photosynthesis.
The *heart* is the main organ of the circulatory system.
The circulatory system consists of three independent systems that work together: the heart (cardiovascular), lungs (pulmonary), and arteries, veins, coronary and portal vessels (systemic). The system is responsible for the flow of blood, nutrients, oxygen and other gases, and as well as hormones to and from cells.
