Invasion index
An index devised by Abercrombie & Heaysman as a means to estimate the invasiveness of cells in vitro. The index is derived from measurements on confronted explants of the cells and embryonic chick heart fibroblasts growing in tissue culture: it is the ratio of the estimated movement, had the cells not been hindered and the actual movement in the zone in which collision occurs.
Dictionary > Invasion index
You will also like...
Hormone Production
Hormones are chemical messengers produced by specialized glands and they were produced by switching on the genes designe..
Biosecurity and Biocontrol
This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..
Freshwater Community Energy Relationships – Producers & Consumers
This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..
Developmental Biology
Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains matu..
A Balanced Diet – Carbohydrates and Fat
Apart from vitamins, the human body also requires high energy sources such as carbohydrates and fats. If you want an ove..
Animal Water Regulation
Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..