The human limb acts as an extender. it allows us to reach further and maintain homeostasis.
I'm not a hundred percent sure, but I would say bargraph's or circle graphs are definitely the most efficient.
half of two threadlike strands of replicated chromosomes
Increasing species diversity can influence ecosystem functions — such as productivity — by increasing the likelihood that species will use complementary resources and can also increase the likelihood that a particularly productive or efficient species is present in the community