Answer:
Sometimes, a mutation that occurs will be beneficial to the species. Through natural selection, this mutation will become more prevalent in this species' genes, thus they evolve to have this trait.
Answer:
Closed Chain
Explanation:
A closed chain refers to a position where the most distal aspects of a given extremity are fixed to the earth or another solid object. This fixed position alters the movement of the joints and surrounding musculature up the chain.
English: Examples of projects for sixth grade science fair.
