Question

this is a model to help students understand the process of photosynthesis, which allows plants to create their own food. the greatest limit
a the roots are visible in the model.
b the cellular structure of the plant is not included.
c the comparative size of the plant and the sun are inaccurate.
d it is incomplete and does not show all reactants and products.

Explanation:

Photosynthesis involves complex chemical - physical processes with specific reactants (water, carbon dioxide, light) and products (oxygen, glucose). A complete model should show all key components. Visibility of roots, lack of cellular structure, and size inaccuracies are secondary compared to the incompleteness of reactants and products representation.

Answer:

D. it is incomplete and does not show all reactants and products.