yolk cell
41Drosophila melanogaster — Male Drosophila melanogaster Scientific classification Kingdom …
42Embryogenesis — [ http://www.ncbi.nih.gov/About/primer/genetics cell.html NCBI] .] Embryogenesis is the process by which the embryo is formed and develops. It starts with the fertilization of the ovum, egg, which, after fertilization, is then called a zygote.… …
43Nutrition — The Nutrition Facts table indicates the amounts of nutrients which experts recommend to limit or consume in adequate amounts. Nutrition (also called nourishment or aliment) is the provision, to cells and organisms, of the materials necessary (in… …
44nutrition, human — Introduction process by which substances in food are transformed into body tissues and provide energy for the full range of physical and mental activities that make up human life. The study of human nutrition is interdisciplinary in… …
45Testicular cancer — Classification and external resources 7.4 × 5.5 cm seminoma in a radical orchiectomy specimen. ICD 10 C …
46Germinoma — Classification and external resources Micrograph of a germinoma. H E stain. ICD O: 9060 9061, M …
47Egg white — Albumen redirects here. For other uses see Albumen (disambiguation). : For the musician, see Eg White. Egg white is the common name for the clear liquid (also called the albumen or the glair/glaire) contained within an egg. It is the cytoplasm of …
48Cnidaria — Temporal range: 580–0 Ma …
49Centrolecithal — (Greek kentron = center of a circle, lekithos = yolk) is the placement of the yolk in the centre of the cytoplasm of ovums. Many arthropod eggs are centrolecithal. During cytokinesis, centrolecithal zygotes undergo meroblastic cleavage, where the …
50flatworm — /flat werrm /, n. any worm of the phylum Platyhelminthes, having bilateral symmetry and a soft, solid, usually flattened body, including the planarians, tapeworms, and trematodes; platyhelminth. [1895 1900; FLAT1 + WORM] * * * or platyhelminth… …
