Invagination

Invagination
1. (Science: biology) The condition of an invaginated organ or part.
2. (Science: biology) One of the methods by which the various germinal layers of the ovum are differentiated.
in embolic invagination, one half of the blastosphere is pushed in towards the other half, producing an embryonic form known as a gastrula. In epibolic invagination, a phenomenon in the development of some invertebrate ova, the epiblast appears to grow over or around the hypoblast.
Origin: L. Pref. In- – vagina sheath.

Growth Patterns

This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..

kinesin motor proteins transporting molecules across microtubules

Movement of Molecules Across Cell Membranes

Molecules move within the cell or from one cell to another through different strategies. Transport may be in the form of..

Genetics – Lesson Outline & Worksheets

Topics Modules Quizzes/Worksheets Description Introduction to Genetics Genetics – Definition: Heredity and ..

Fossil trilobite imprint in the sediment

Insects

There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..

Respiration

The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..

Neurology of Illusions

Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..