Which of the following statements is true with regard to gene flow? Gene flow decreases genetic differences between populations.

Gene flow increases genetic differences between populations.

Gene flow occurs when random events change the gene pool.

Gene flow occurs when non-random events change the gene pool.

Stem cells found adult tissue such as in bone marrow brain muscle skin and liver are only capable of what

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

According to cell theory; which structures carry out the basic function of living things? a. atoms b. organs c. cells b. nuclei