Answer:
As a central part of the circulatory system, the heart is primarily responsible for pumping blood and distributing oxygen and nutrients throughout the body.
Explanation:
Answer:
This happened because of evaporation. The sun evaporated the water.
To make sure its clean so when they reuse the needle it doesn't give the next guy aids before killing him.<span />
Answer: Bone marrow
Explanation:
The facts from your question about the function of erythrocytes, thrombocytes, and leukocytes are true.
Bone marrow is considering spongy tissue that is found in our bones and bone marrow contains stem cells which are important for red blood cells, white blood cells, and platelets.
The stem cells can develop into those three and in that way, the whole body system is connected.