<span>The scientific community ensure that all work done and shared is purely objective and based on solid facts and complete experimental procedure. Therefore, the scientific method is adopted to avoid bias in experiments. A bias would cause results to be skewed to fit the researchers' personal views, making the finding unreliable.</span>
Answer:
Plants are valuable since they provide our food, materials for shelter, and purify the air (photosynthesis).
Animals such like livestock, supply us with food, fiber and leather.
The Endangered species act can help a local economy because it helps to supply clean air and pure water. It also protects our natural supplies.
Sidney W. Fox produced proteinoid spheres, which suggest a possible route from chemical to cellular life.
The function of the limb is to help them get around and move. They might be similar in the way they’re structured? I don’t have a picture so I can’t tell. And you can assume that at one point these four animals all shared a common ancestor. Hope I helped!