d. enzymes increase the rate of chemical reaction by providing activation energy to the substrate
The sun provides light energy to the earth via Solar particles, I think.
The correct answer is that Earthworms hold a closed category of circulatory system. <span>The earthworms circulates blood </span>solely through<span> their blood vessels. There are </span>three major<span> vessels that </span>deliver<span> the blood to the organs of </span>the <span>earthworm, </span>those<span> vessels are known to be the aortic arches, dorsal blood vessels, and ventral blood vessels.</span>
The non-coding strand is also called a template strand which does not code for mRNA where as the strand codes for mRNA are used for furthering the process of transcription