Answer:
1) When African climates were wetter millions of years ago, there were more trees and our earliest ancestors got around by climbing in them. Scientists think that when African climate dried and the number trees was reduced, our ancestors had to move in a new way – by walking on two legs through grasslands.
2) Glacial melting has increased since the 1980s, and popular reports often suggest there will be significant impacts on local populations, including migration. Even so, glacial retreat has not triggered new migration flows and has had a limited impact on the existing migratory patterns.
Explanation:
Answer: Scaffolding
Explanation:
Scaffolding reading is done to actual simplify the material in a way that it becomes easier for the students to understand it. A teach would break down the information or activity into digestible chunks that would be easier for a student to grasp.
This can be done by linking the new information to the preexisting Information that the students may have so that it becomes easier to understand. A teacher may also use visual aids which can make it easier to associate new vocabulary with what the student knows in form of a picture. Graphic organizer can also be used.
Answer:True
Explanation:
Its true because it does just that
B
light oath bends as it enters the water
Answer:
(B) Retrospective cohort
Explanation:
Retrospective cohort studies: The retrospective cohort studies are one of the types of observational research studies including the researchers to look back in time or past at self-report or archived data to investigate the difference in the risk of disease between exposed and non-exposed patients.
Cohort studies are better than case-control studies because they are generally prospective. The cohort studies are inexpensive to carry-out.
In the question above, the statement signifies the retrospective cohort study.
