They changed over time by finding the right ingredients such as iron, metal, or steel to forge different creations. They took so slowly because no one was discovered the things to make stone tools.
Answer:
Some flowers with dark blue petals and some with white petals.
Explanation:
Spencer trusted that exclusive the fittest society would get by after some time, prompting general up reviewing of the world overall. Herbert Spencer was a noteworthy figure in the scholarly existence of the Victorian time. He was one of the vital advocates of developmental hypothesis in the mid nineteenth century, and his notoriety at the time matched that of Charles Darwin.