Factors that may trigger vasodilation or vasoconstriction include all of the following EXCEPT: (an explanation would help immensely if possible)

A- the metabolic rate determined by activity will influence the regulation of temperature
B - some substances such as alcohol and nicotine interfere with temperature regulating mechanisms
C- the chemical activity of the small intestine plays a major role in the temperature homeostasis
D - the brain, in response to a change in BP, influences temperature regulation directly

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

prophase is the first step in mitosis and will show one huge circle (nucleus) and centrioles - nothing is being done to it. metaphase is the third step and where the chromatids meet in the middle and the centrioles are at opposite ends. anaphase is the fourth step and where the chromatids start to split/separate. telophase is the second to last step where the chromatids start to split along with the centrioles, it looks like there is getting ready to be two different cells. if you follow this, then it should you to answer what it looks like. have a great day and i hope i you! if i did not answer your question or you are confused, let me know and i will you as much as i can.