<span>I believe the answer is C. Grasslands and forests do not have permafrost--present in tundra and taiga so A can be eliminated. B is not right because forests and grasslands definitely do not get TOO much rain, assuming they're not talking about tropical rain forests. </span>
Smooth muscle is the answer
While norepinephrine is majorly a neurotransmitter (in synaptic transmission)
, it also acts as a hormone produced by
the adrenal gland. It is usually secreted as a stress hormone, just like
cortisol. It increases heart rate, blood flow
in skeletal muscles, production of glucose by the liver, especially in the
fight-or-flight response.
I believe the image represents the stage "metaphase"
Hope this helps!