How might density dependent limiting factors be affected by a flood or some other natural disaster?

Which pattern most likely came from a gunshot and which one was produced from a blow on the head? explain your answer?

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

Pls me i need this ! each cell has genes activated depending on it's job and what kind of cell it is. it is the presence of that causes the repressor protein to fall off and unblock the gene on the lac operon. if a gene is turned on then it is being an additional circular chromosome found in some bacteria that is used in genetic engineering.