<span>In this case, all the scientists and biologists who are studing an oil spill that go on to predict how much damage has been done to both the ecosystem and the organisms living in it can strengthen the predictions by presenting different perspectives and inferences.</span>
Answer:
Open circulatory system:
Relies on the heart to keep blood flowing
Used in all vertebrates
Sorry thats all i know :)
C the region that codes for rna folds
i don't know if this is right i tried
