Answer:
To study the evolutionary relationships of the earliest forms of life on Earth we need to examine a structure that is present in all cells and changes very slowly over time.
All life on Earth was initially divided into three main Domains: the Bacteria, the Archaea, and the Eukarya, based on the similarities of their:
Ribosomal RNA
Explanation:
Ribosomal ribonucleic acid: RNA (rRNA, mRNA, and transfer RNA (tRNA), is a noncoding molecule of RNA in cells, which is the main building block for ribosomes protein-synthesizing organelle, exported to the cytoplasm to help translate the information in messenger RNA (mRNA) into protein. They are essential to all living organisms.
Because all these cells are similar in nature within the bacteria, the archaea and the eukaryait, there is a thought that all cells came from a common universal ancestor cell that eventually evolved into three different kind of cells, representing each of these domains.
Answer:
Yes.
Explanation:
Yes, each of the Ancient African Kingdoms has a unique cultural heritage which they gain from their ancestors long time ago. They follow their traditions and culture with great pleasure and happiness. For example, the veneration of Amun, and the royal families of two kingdoms often intermarried is the culture of Kingdom of Kush. They follow the culture of Egyptian while on the other hand, the culture of Kingdom of Aksum influenced by Egyptians, the Greeks, the Romans, and the Arabs.
Answer:
This rapid growth increase was mainly caused by a decreasing death rate (more rapidly than birth rate), and particularly an increase in average human age. By 2000 the population counted 6 billion heads, however, population growth (doubling time) started to decline after 1965 because of decreasing birth rates.
Explanation:Rapid growth has led to uncontrolled urbanization, which has produced overcrowding, destitution, crime, pollution, and political turmoil. Rapid growth has outstripped increases in food production, and population pressure has led to the overuse of arable land and its destruction.
Rivers often act as really effective and accessible trade routes, so the historian could use this map to analyse trade routes between Early River Valley Civilizations.
Hope this helps :))
B. Laws can change social prejudice
