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In evolutionary terms, can we say which...

In evolutionary terms, can we say which among bacteria, spiders, fish and chimpanzees have a 'better' body design? Why or why not?

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Evolution cannot always be equated with progress or better body designs. Evolution simply creates more complex body designs. However, this does not mean that the simple body designs are inefficient.
a. If complexity of body design is the criterion, then chimpanzee is obviously better than bacteria.
b. Bacteria having a simple body design are still the most cosmopolitan organisms found on earth. They can survive hot springs, deep sea, and even freezing environment. The.above 2 examples show that Bactena, spiders, fish, arid chimpanzees are all different branches of evolution.
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