Certain parts of the brain govern specific functions. For example, the cerebellum is involved with coordination; the hippocampus with memory. Nerve cells (neurons) are the basic unit of communication in the brain.
Eukaryotic organisms use mitosis to reproduce sexually. In mitosis, the parent cell is divided into two daughter cells which be identical to the parent cell. Edit
This form of reproduction occurs without the involvement of another. Asexual reproduction is very common in single cell organisms and in many plants. There are many forms of asexual reproduction. Mitosis, fission, budding, fragmentation, sporulation and vegetative reproduction are all examples of asexual reproduction. In unicellular organisms, the parent cell just divides to produce two daughter cells. The term for kind of cell division is Mitosis Below is an illustration of the process of mitosis: Living organisms do not live forever. Some live for many years, others live for a few years and some live for a few days. The term for the length of time an organism lives is called their âLifespanâ. For instance, an adult mayfly lives for only one day, a mouse lives for 1-2 years and tortoise can live for about 152 years.