Which of the following systems of the body interact when a stressful situation causes a person's heart rate to increase and pupils of the eyes to dilate? A.
nervous system and excretory system

B.
endocrine system and nervous system

C.
respiratory system and nervous system

D.
nervous system and digestive system

Kelly ran electricity though a sample of water using electrolysis. the water changed into two gases, x and y. it was not possible to break down the gases x and y into simpler particles.

~fourth largest plate ~includes parts of the indian and atlantic oceans ~subducts below the eurasian plate on the west side ~ the arabian and somali plates form boundaries with it what is the name of the tectonic plate described above? a) african plate b) eurasian plate c) north american plate d) indo- australian plate

Which of the following is a limitation of a clinical trial? a.)amount of random assignments b.)hospital cost c.)number of test tubes d.)amount of peer review