Do birds exhibit mainly internal development or external development

Which feature would you expect to find in a population in which sexual selection depends on male competition?

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.

Can result as a complication of diabetes due to damage to the arterial walls and excess fat in the blood.