Your answer would be valence electrons, i believe.
Ribosomes are where protein synthesis occurs.
B.
Ovulation is the process in which eggs are released from the ovary.
<span>When cells were first taken from Henrietta Lacks, she was suffering from cervix cancer. Henrietta Lacks was a woman whose cervix cancer cells were used as the source of the HeLa cell line nowadays used in medical research. During treatment for cervical cancer in 1951, the cells were taken without her knowledge. The cells were cultured by George Otto Gey who created the HeLa cell line.</span>
Using Natural predators to reduce insect numbers caused the least harm to the environment.