The sunflower plants shown are the same species. The differences in
height among the plants is an example of

The sunflower plants shown are the same species. The differences in

height among the plants is an example of variation

Explanation:

Variation entails difference in a condition which is exactly what happened as regards sunflower plant with different height

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.