The CK-12 Biology Teacher's Edition complements the CK-12 Biology Student Edition FlexBook® textbook.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be ...
Biology concepts for high school.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).
CK-12 Biology is a high school FlexBook® textbook covering cell biology, genetics, evolution, ecology, microorganisms, fungi, plants, invertebrates, vertebrates, and physiology.
It is an educational co ...
Plant cell: the cell is a highly complex system that is the site of intense energy exchange and which presents vast interphase surfaces. Like all living organisms, it feeds itself, grows, multiplies a ...
Meiosis: two stage division of a cell, producing gametes and halving the number of chromosomes in its nucleus. See more
Meiosis - Visual Dictionary - Copyright © 2005-2016 - All rights reserved.
Cell: the cell is a highly complex system that is the site of intense energy exchange and which presents vast interphase surfaces. Like all living organisms, it feeds itself, grows, multiplies and die ...
Rachis: bony axis of vertebrates, comprised of the set of vertabrae from the base of the skull to the pelvis. See more
Rachis - Visual Dictionary - Copyright © 2005-2016 - All rights reserved.
Vertebra (lateral view): set of bones of the spinal column. See more
Vertebra (lateral view) - Visual Dictionary - Copyright © 2005-2016 - All rights reserved.
Vertebra: set of bones of the spinal column. See more
Vertebra - Visual Dictionary - Copyright © 2005-2016 - All rights reserved.
Spinal cord: central neural tissue of the spine, composed of a soft, fatty substance that transmits nerve impulses between the brain, the organs and the limbs. See more
Spinal cord - Visual Dictionary ...