<span>The coral reef ecosystem is a diverse collection of species that interact with each other and the physical environment. The sun is the initial source of energy for this ecosystem. Through photosynthesis, phytoplankton, algae, and other plants convert light energy into chemical energy.</span>
The best explanation Charles Darwin provided was C) <span> He was the first to provide an explanation of evolution supported by evidence. </span>
The pahoehoe<span> flow has a comparatively smooth or "ropy" surface. The surface of the </span>aa<span> flow consists of free chunks of very angular pieces of </span>lava<span>. This </span>difference<span> in form reflects flow dynamics. </span>Aa<span> forms when </span>lava<span> flows rapidly.</span>
