What do u need help with there’s nothing there
Answer:
A. hairs on the back stand up when scared
Explanation:
B and C are not responses to stimuli, and D is a response to internal stimuli
Answer:
dilation of vessels and sweating
Explanation:
The vast blood supply of the skin aids in temperature regulation: dilated vessels enable heat to escape, while constricted vessels retain heat. The blood supply of the skin regulates body temperature. The skin aids in the maintenance of homeostasis. Humidity has an effect on thermoregulation because it reduces perspiration evaporation and, as a result, heat loss.
Answer:
Globally, the primary sources of greenhouse gas emissions are electricity and heat (31%), agriculture (11%), transportation (15%), forestry (6%) and manufacturing (12%). Energy production of all types accounts for 72 percent of all emissions.
Answer:
Polygenic.
Explanation:
A trait that is controlled by more than one gene is called polygenic which translates to "multiple genes".
