The statement made by one of the children indicates the correct understanding of the teaching is that; "There are not many physical differences among school age boys."
<h3>What is development and growth?</h3>
Development and growth has to to with the sequence of changes that take place in an organism from birth to death. The rate of development usually differ sometimes from person to person.
However, the statement made by one of the children indicates the correct understanding of the teaching is that; "There are not many physical differences among school age boys."
Learn more about development and growth: brainly.com/question/8347621
They lacked the proper equipment so sensitive chemical tests and analytical instruments. Hope this helps!
Answer:

The exposure may be risk factor.
Explanation:
Given

Required
The odd ratio
First, we calculate the odds of exposure using:

For cases, we have:


For controls, we have:


So, the odds' ratio is:



Conclusion about the odds' ratio
The calculated ratio is greater than (and also far from) 1.
This implies that there is a greater exposure than the controls.
So, we can conclude that the exposure may be risk factor.
No it can not eat away your liver.
Answer:
I think viruses, bacteria,fungi and parasites.