Why is a food web a more realistic representation of nutritional patterns than a food chain?

MRCORRECT has answered the question

Explanation:

It is more realistic to consider food webs, a more complex representation than a food chain. ... the producer will consume several foodstuffs, the species to be eaten will be consumed by more than one other species. The web takes into account contributors that are part involved in one chain, and part involved in another.

a axis of a graph is a color or shade so we can all go outside and have a party so we can eat   some grilled cheese sammiches and broccoli and have some ugly fun times

i don't know why i put this, i know its not the i was just bored : p

delete this answer while you can

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.