Which of the following is not true of negative feedback loops? Negative feedback loops maintain homeostasis.
Negative feedback loops are temporary.
In a negative feedback loop, the response to the signal or stimulus decreases the original signal or stimulus.
There are many more instances of negative feedback loops in the human body than positive feedback loops.

Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.