I think its <span>protozoa but I am not sure.</span>
Answer:
Sodium will let that electron go as soon as it can, which is why it generally forms ionic compounds such as NaCl. When sodium atom loses an electron from its outer energy shell, it becomes Na+ ion. D is the answer
Explanation:
Answer:
The Respiratory system allows entry of oxygen into the body and release Carbon Dioxide. The Oxygen travels across lung tissue into blood vessels and the blood carries the oxygen around the body. Thus the Respiratory and Circulatory system work together in gas exchange which is vital in Homeostasis
Answer:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium.
Explanation:
