AP BIOLOGY

Detailed explanation-1: -Embryology (from Greek , embryon, “the unborn, embryo"; and-, -logia) is the branch of animal biology that studies the prenatal development of gametes (sex cells), fertilization, and development of embryos and fetuses.

Detailed explanation-2: -Human Embryology and Developmental Biology is the study of the fascinating process in humans and animals that turns a single fertilised egg into a whole new individual with all the many specialised cell types.

Detailed explanation-3: -Definition: fertilization is the union of the male (sperm) and female (oocyte) gametes to form a zygote and marks the beginning of pregnancy. Embryonic life begins with fertilization. Fertilization process requires about 24 hours. Maturation of a follicle takes place in the ovary from an oocyte to a graafian follicle.

Detailed explanation-4: -Embryology is a branch of science that is related to the formation, growth, and development of embryo. It deals with the prenatal stage of development beginning from formation of gametes, fertilization, formation of zygote, development of embryo and fetus to the birth of a new individual.

Detailed explanation-5: -Generally, it’s called an embryo from conception until the eighth week of development. After the eighth week, it’s called a fetus until it’s born.