the figure shows a model of the exchange of matter between the organisms that live together in an aquarium. The model includes matter exchange between plants, fish , and bacteria. The bacteria are represented as rod-shaped organisms living in the gravel at the bottom of the aquarium.

What evidence did mendel find that supported his law of independent assortment? a. some traits are controlled by several different genes. b. a trait can be passed on from a parent to an offspring. c. most traits have a dominant form and a recessive form. d. different traits are passed on independently of each other.