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:
Explanation:
There are several things that they did, such as
-- Building missios and pessidios within the region
- Handlig the Anglo immigrants to the region by promising them with new prospect of natural resources
- Sending troops to handle the east texas region as an effort to prevent Mexico's intention from gaining their own independence from the Spnish.
Answer:
ethical dilemma
Explanation:
According to my research on studies conducted by various psychologists, I can say that based on the information provided within the question Davis is facing an ethical dilemma. This refers to a problem in which there may or may not be a morally correct choice, and if there is then that choice may not be the most logically correct choice. Which is what Davis is facing, since he can choose the logical choice which would be to demand a better manufacturing unit, but by doing so it will cause a raise in the prices of necessary pharmaceuticals that people will not be able to afford, which would be morally wrong.
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