A Chief Information Security Officer at a medium enterprise computer software company would be very likely to recommend Cisco Advanced Malware Protection for this reason: I feel that it gives me the features, the visibility, and the level of forensics that I need in my environment.
The answers is (c) bacteria-the simplest, smallest, and most abundant organisms on Earth. Bacteria are procaryotic organisms; which indicates a cellular structure lacking an organized nucleus and nuclear membrane.
Invertebrates, animals without a notochord or backbone, comprise the largest group of organisms in the world, forming over a million species. Marine invertebrates alone comprise thousands of species, and are a hugely diverse group of animals, from sessile sponges to spiny sea urchins.