by Thomas Haslwanter, at al.
Publisher: Wikibooks 2012
Number of pages: 90
This book presents our sensory system from an engineering and information processing point of view. On the one hand, this provides some insight in the sometimes spectacular ingenuity and performance of our senses. On the other hand, it provides some understanding of how our senses transduce external information into signals that our central nervous system can work with, and how this process can be replaced by technical components.
Home page url
Download or read it online for free here:
by Mike J. Farabee
College-level introductory biology: chemistry, cells, enzymes, metabolism, photosynthesis, genetics, protein synthesis, plants, animals, evolutionary theory, paleobiology, biological diversity, human evolution, population ecology, etc.
- CK-12 Foundation
This free online textbook covers seven units: Understanding Living Things; Cells: The Building Blocks of Life; Genetics and Evolution; Prokaryotes, Protists, Fungi, and Plants; The Animal Kingdom; The Human Body; and Ecology.
- Educational Testing Service
The content of the test is organized into three major areas: cellular and molecular biology, organismal biology, and ecology and evolution. The test consists of approximately 200 five-choice questions, a number of which are grouped in sets.
by Truman Jesse Moon - H. Holt and company
This text presents the fundamental facts of elementary biology as clearly and briefly as a reasonable scientific accuracy will allow. The course emphasizes the fact that biology is a unit science, based on the fundamental idea of evolution.