<span>Size and complexity are limited in systems usually by a combination of factors. Such as access to resources. Successful reproduction. Evolution over time dictates what is a successful balance in size and complexity in a system in its environment. If the resources are there and there is successful adaptation to the environment, systems can be supported that are extremely complex and also huge in size. Say the human body as a system.</span>
Answer:
A dominant allele is a variation of a gene that will produce a certain phenotype, even in the presence of other alleles. A dominant allele typically encodes for a functioning protein.
Answer:
Hand and mouth;
Hands have more of the sensory structure of touch, this is because you use your hands more than you would your elbow. Mouths have the sensory structure of taste, as well as the sense of touch, so mouths have more sensory structures than your foot.