Adna strand witha base sequence of acttcgcatg when replicated would yield a newly formed strand of the same base sequence true or false

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Which of the following is a limitation of a clinical trial? a.)amount of random assignments b.)hospital cost c.)number of test tubes d.)amount of peer review

This is a biological reaction due to a stimulus. i need this quickly !