Polygenic inheritance is the pattern of inheritance where a wide range of phenotypes that result from many gene pairs in an individual organisms controlling a single trait.
Examples would include = skin colour and or measurement of height.
B) A node would be introduced.
This would be used to help provide distinctions to these species
Environmental and genetic factors can influence the growth of many organisms on earth such as plants, animals, and even fish. When the climate changes, many animals/organisms adapt by adaptation and evolution. Every organism can evolve in order to stay alive in this race of competition for survival. This is a natural accordance that happens every day in our world. Thus making organisms stay alive for longer periods of time.
Answer: important because it helps make sure no one will get hurt
Explanation:
if there weren't lab rules then people could burn themselves or get severely hurt
