The period of human evolution has coincided with environmental change, including cooling, drying, and wider climate fluctuations over time. How did environmental change shape the evolution of new adaptations, the origin and extinction of early hominin species, and the emergence of our species, Homo sapiens? (‘Hominin’ refers to any bipedal species closely related to humans – that is, on the human divide of the evolutionary tree since human and chimpanzee ancestors branched off from a common ancestor sometime between 6 and 8 million years ago.)
How do we know Earth’s climate has changed? How quickly and how much has climate changed? One important line of evidence is the record of oxygen isotopes through time. This record of δ18O, or oxygen stable isotopes, comes from measuring oxygen in the microscopic skeletons of foraminifera (forams, for short) that lived on the sea floor. This measure can be used as an indicator of changing temperature and glacial ice over time. There are two main trends: an overall decrease in temperature and a larger degree of climate fluctuation over time. The amount of variability in environmental conditions was greater in the later stages of human evolution than in the earlier stages.
Answer:
Noel hypothesis.
Explanation:
The theory that best explains segregation under these conditions is the <em>Noel hypothesis</em>. The Noel hypothesis claims that if there is contact of groups were there is ethnocentrism, competition and differential in power, some dominant-minority group will be created. This will lead to inequality. Ethnocentrism is the belief in the superiority of our race and culture. It can make us view the other race as inferior. The three components of this hypothesis were present during the Jim Crow era.
The profession that a person can rely on the information about parallel and perpendicular lines are the civil engineers. They will know if the structure of the building having perpendicular beams means that it may or may not be stable depending on the material used.
Answer:
up your 3utt and around the corner jk its Sagittarius A;)
Explanation:
Answer:
to "take care that the laws be faithfully executed" enforce laws
Explanation:
