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.
x would be the most and the least would be y because there are more fruit and seeds than flock z has insects
the cells uses some of the atoms of the glucose molecules to atp molecules. the atoms of the glucose molecules will then be converted into energy which will be eventually stored in atp. the energy produced which are stored in atp are coming from the glucose’s chemical bonds.