Look up Evelyn in Wiktionary, the free dictionary. Evelyn is a name in the English language, where it can be used as a first name or a surname. As a first name, it can refer to persons of either sex, although it is more commonly borne by females.The name originally was used a surname, which derived from Aveline, a feminine Norman French diminutive of the name Ava.ook up Evelyn in Wiktionary, the free dictionary. Evelyn is a name in the English language, where it can be used as a first name or a surname. As a first name, it can refer to persons of either sex, although it is more commonly borne by females.
Cephalization Cephalization is the process in animals by which nervous and ... Although cephalization is associated primarily with bilaterally symmetrical ... While at first seeming a bit simplistic, cephalization has ... Cephalization means that there is a head, and therefore a concentration of ...ephalization: Evolutionary Process where nerves and sensory structures evolved in the head. ... ... bilateral symmetry with obvious cephalization, three embryonic germ layers with ... is the first step toward cephalization and development of a central ...
Fertilization is the process in which an egg and a sperm cell come together to form a zygote, beginning the series of events that can result in pregnancy.In mammals, including in human beings, eggs are released from the female ovary, and sperm from the male penis.ertilization typically occurs in one of the fallopian tubes, after which the egg travels to the uterus over a period of around three days. Once in the uterus, the zygote implants in the endometrial lining to continue development.