Describe the difference between negative and positive feedback mechanisms in
the body
a. positive feedback increases the body's level of a variable while negative
feedback reduces the level of the variable
b. positive feedback is good for the body and put the body back to homeostasis. negative feedback occurs when there is a problem with the body
and it can't get back to homeostasis.
c. negative feedback returns the body to its "normal" levels when it gets too high
or too low. positive feedback continues to add to one side of the balance
making the change even greater.
d. both negative and positive feedback loops work in the same way to the
body maintain homeostasis.
only answer if you know the answer

answer; i believe is(b)converging

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

feral cats are estimated to eat tens of millions of native animals each night in australia