The cardiovascular system transports oxygen and nutrients to the cells and transports waste away from the cells
Annelids have neither an external or an internal shell. Examples of annelids are
earthworms and leeches.
Reproduction is not necessary but is essential in keeping the generations of species going.<span />
Renewable energy provides reliable power supplies and fuel diversification, which enhance energy security and lower risk of fuel spills while reducing the need for imported fuels. Renewable energy also helps conserve the nation's natural resources.
hardness<span>, </span>luster<span>, </span>color<span>, </span>streak<span>, </span>specific gravity<span>, </span>cleavage<span>, fracture, and </span>tenacity<span>.</span>
