vestigial
refers to an organ or part (for example, the human appendix) which is greatly reduced from the original ancestral form and is no longer functional or is of reduced or altered function.
Vestigial structures provide a clue to the evolutionary history of a species because they are remnants of structures found in the ancestral species.
Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..
A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..
Plants produce hormones to regulate their growth. Auxins, for instance, influence plant growth. Know the role of auxin i..
There are many environmental factors that arise due to the usage of water in one way or another and for every action tha..
The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..
This tutorial is a continuation of the first lesson on chromosomal mutation. Here, find out the chromosomal aberrations ..