The answer to the question is D
Four sodium ions and four chloride ions
Answer:
The veins (blue) take oxygen-poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen-rich blood away from the heart to all of the body's tissues.
Explanation:
hope this helps
Answer:
The cytoplasm is a thick solution that fills all cells.it helps to give a cell its shape
Usually insulators are used to reduce energy loss (D)
