I believe the answer is: catgut tied to crude metal wires
The catgut is made by the intestines of mammals such as horse or sheep. Ancient Egypt was among the first one to use this method in order to preserve the teeth.
For wealthier citizens, they might use a more expensive metal for the braces. The Etruscans for example use gold as a form of brace in order to prevent tooth collapse.
Answer:
i believe the answer is true.
Explanation:
Answer:
A
Explanation:
This would be so because to take a conservative approach, not much would change. A conservative outlook would support past laws, etc.
Answer:
Strong positive
Explanation:
In studies, we usually establish relationships between two or more variables using correlations. Correlations tell us how this variables are related.
- Two variables have a positive correlation when if one increases the other increases too.
- Two variables have a negative correlation when if one increases the other decreases and vice versa.
Also, a correlation can be weak, moderate or strong. Researchers agree that a correlation that is larger than 0.70 should be considered a strong correlation.
In this example Isabella reads about a study saying there's a correlation coefficient of +0.85 between hours spent studying and final exam grade. <u>The fact that the sign of this correlation is "+" tells us that it is positive</u> (the more hours spent studying, the better final exam grade). We can also see that <u>the coefficient is 0.85 which is greater than 0.70 and therefore we can consider this correlation as a strong one.</u>
Thus, Isabella would conclude that this is a strong positive relationship.
Answer: overextension of words
Explanation:
When children are still around the age of three they may confuse the meaning of words. As a result they may use one word for different things which are not even related maybe because in their still developing mind they see some minor similarities.
For example a car and a bus both have wheels and travel on the road these similarities may cause a child to refer to them both as cars.
If there are these minor similarities that they observe between things, they are likely to use one word to name those things that show similarities.
This occurs because children haven't really grasped the use of langauge, definition of words and all its collect grammar.
