Answer: In modern view, the origin of variation is mutation. Since Darwin stated that variation will occurs in the most useful part and is retained, most people don't use their left hands, if according to Darwin's theory, those left hands should be going to extinct by now.
If Darwin's theory of variation is acceptable, then dwarfs who always want to be giant, by stretching the body, would have become giant by now.
Darwin just had a general idea about variation, offsprings tends to change in appearance from the parents. But this variation is not in terms of usefulness of the body parts of the parents, it is in terms of Gene mutation of the parents in their offspring.
Explanation: Darwin's 1859 theory set out a theory of Evolution by natural selection to explain adaptation and speciation.
According to Darwin's theory, individual of one generation are qualitatively different from one another this is as a result of natural selection. But in modern science, this is as a result of Gene mutation.
<span>Nitrogen-fixing bacteria in root nodules of legumes.</span> This is an illustration of a relationship that both organisms<span> need</span>
Cyrus The Great and Darius the Great Expanded Persian Territories establishing the Achaemenid Empire, which was the largest the world has ever seen
The research must pose no more than minimal risk.
Answer:
The Aztecs built their empire's wealth by collecting tribute from conquered peoples.
Explanation:
Conquered people had to pay tributes to the emperor. Some people captured in war were used for human sacrifice. The Aztec Empire was the last of the great Mesoamerican cultures. From roughly 1350 to the mid-1500s, the Aztecs built an empire that covered a great part of the highlands in central Mexico. It was said to cove over 80,000 square miles at its height. Before the arrival of the Spanish, millions of people were paying tribute to the Aztec ruler. The tributes were paid by conquered communities in the form of food, cotton, animals, building materials, as well as young men who could act as soldiers. This helped to support the growing population of Tenochtitlan and gave the Aztecs the ability to pay warriors, priests, and servants and further build the symbolic power of their empire.
