3: Brain regions and their functions. 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.
Budding is a type of asexual reproduction. It is most commonly associated with bacteria and yeast, but some animal species reproduce via budding, too. A parent organism creates a bud from its own cells, which then form the basis of the offspring organism and develop into an organism resembling the parent.Animals that reproduce this way are basic organisms, either without reproductive organs or with both male and female reproductive organisms located internally.hey take in oxygen and nutrients through the process of diffusion. To reproduce, flatworms produce self-fertilized eggs and release them. Upon release, these eggs split and go on to grow into entirely new organisms. All types of parasitic flatworm, such as tapeworms, use budding.
Asexual reproduction in single-celled organisms. Single-celled organisms which use asexual reproduction can do so very rapidly simply by dividing into two equal halves. This is called binary fission. In yeasts the cell does not divide equally in two halves; instead, there is a large mother cell and a smaller daughter cell. This is called budding. Some of the simple algae, such as Spirogyra shown above, grow in long threads called filaments. They grow longer each time a cell in the filament divides.