Sperm cells must swim to the egg. what type of organelle must they contain? why?

49 ! how are energy cycles and growth cycles related?

What are some of the immune functions of the lymphatic system? a. cleaning red blood cells from the blood and creating lymph fluids b.transporting lymph to the tissues and creating lymph fluids c.removing infectious agents and making white blood cells d.making red blood cells and removing infectious agents

Si units are the modern form of the