I don’t know what a carry is but if you’re pushing, I guess that’s active since you’re using energy.
Answer: The correct option is c. transposons or jumping genes.
Barbara McClintock while studying the genetic inheritance in corn plants found that DNA segments can change position in genome or can move from one chromosome to another. The mobile genetic elements or the transposons are also called jumping genes. The transposons are capable of moving to different positions in a single cell genome. The transposons are responsible for causing mutations or change the amount of DNA of the cell.
The population must be isolated from other populations.
Answer:
Blood leaves the spleen through the splenic vein, which drains into a larger vein (the portal vein) that carries the blood to the liver. The spleen has a covering of fibrous tissue (the splenic capsule) that supports its blood vessels and lymphatic vessels.
Well all your doing is writing a paragraph about variation and pressures that can change the characteristics of population along with an example