Large ordered structure, enclosed by a membrane, that carries out some life activities, such as growth and division.
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Respiration
The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..
Seed Plants
Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..
Temperature Regulation in Animals
This tutorial elucidates body temperature regulation. Know the details here to learn how the body sets the body temperat..
Human Reproduction
Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..
The Human Physiology
Physiology is the study of how living organisms function. Thus, human physiology deals specifically with the physiologic..
Meiosis – The Genetics of Reproduction
Meiosis is a form of cell division that creates gametes. It is comprised of two divisions that in the end, the resulting..