What effect does nicotine have on the central nervous system

Who first discovers the alien cylinder on horsell common

Which word in the sentence is the object of the preposition ? scrape the dishes and put them in the sink 1)in 2)them 3)dishes 4)sink

The function described as consumption and the absorption of energy through photosynthesis is called a. respiration b.energy absorption/food consumption c.excretion d. re-charge