Circulatory system pumps blood from the heart to the lungs to get oxygen. The heart then sends oxygenated blood through arteries to the rest of the body. The veins carry oxygen-poor blood back to the heart to start the circulation process over. Your circulatory system is critical to healthy organs, muscles and tissues.
I don’t understand what u say
I know for a fact c is one of the correct answers and I also think b is the other correct one
Hermit crabs and giant tritons have a commensalism type of relationship.
It is important to study the cell in order to learn about DNA is that there many different processes that help to keep a cell running. In order to know DNA, you need to familiarize yourself with mRNA, tRNA, and rRNA to learn the process of transcription and translation- two very important processes in DNA.
