Activated complement brings about the death of a microbe when it . A. organizes into a membrane pore and causes lysis of the cell

B. mediates interactions between immune cells

C. activates a chemotaxic response in certain phagocytic cells

D. all of the above

C

activates a chemotaxic response in certain phagocytic cells

Crossing over is termed as a process by which genetic materials are exchanged by non-sister chromatids during meiosis.

Crossing over results in the new combination of information in genetic for, the cell for a specific trait.

 It ensures that organisms are identical from one generation to another. Genetic recombination allows variations in genetic materials which are passed through generations.