Question 7: A. They used a land bridge
Question 8: A. Religious beliefs
That statement is true.
The intention of excluding the children is to ensure that they wouldn't be exposed to any negative effects from the alteration made during the research.
But an argument could be made that if we truly want to collect the data about a certain effect<span> therapeutic agents in children, including them in research might be necessary.
</span>
Answer:
Because of the mountaineous terrain and rocky landscape
Explanation:
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