Why are behavioral responses to stimuli considered to be adaptive

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun

About __ of the mass of the cell is water

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.