Differentiation requires of particular genes to produce cell populations with capabilities that form tissues. a. inactivation; unlimited b. inactivation; limited c. activation; limited d. activation; unlimited

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.

a compound light microscope is used to magnify objects in steps.  

hope it