Which phrase describes a typical feature of plains? usually have a high relief
O have steep sides
usually have a high elevation
can be interior

the answer is D or can be interior

Explanation: because I took the test and I picked have Steep sides and it's wrong hi relief is wrong and high Evolation is wrong so in conclusion D is your answer

Hope this helps!

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .

your spelling is a little off : ]