The uniramous type of t<span>he </span>appendages<span> of </span>arthropods are comprised of a single series f segments attached end-to-end, rather than branching into two. The other type of arthropod appendages are biramous. The biramous limb <span>branches into two, and each branch consists of a series of segments attached end-to-end.</span>
The smallest group of organisms in which evolution can take place is Species.
Meiosis. Sexual recombination. Crossing over. Independent assortment. Mutations.
The two MAIN sources would be genetic(sexual) recombination and mutations. Mutations allow for genetic variation, while genetic recombination allows for genetic shuffling. :)
The answer is stroke. This means that formation of plaque in the blood vessels that serve the brain cause thickenning of the inner walls of the vessels. When the plaque ruptures, a blood clot forms and blocks blood passage to a particular region of the brain served by the vessel. This stifles oxygen supply to the respective part of the brain leading to the death of the cells in the region.
