Alice is curious whether her pet iguana is more attracted to brightly colored insects or those with drab colors. she gets 20 drab-colored insects of the same species from the pet store and marks 10 of them with a red paste. all 20 insects are released in her iguana's tank at the same time, and she observes the lizard's response.

after five minutes, alice notes that her iguana ate all of the marked insects and only 2 of the unmarked insects. she concludes that her iguana prefers brightly colored insects over those with drab colors.

what is another possible explanation for these results?

Another explanation is survival of the fittest. This is where the best and most adapted to the environment survive.

The colored insects are much easier to spot and track and are therefor easy prey. The colored insects are the least fit for this environment and therefor die out.

Hope this helped!

Smell of the coloring agent used to color drab.

Explanation:

The  iguana prefers brightly colored insects over those with drab colors because though all the drab were from the same species but the one marked with red color might have special smell because of the coloring agent used.

Since it has already been mentioned in the question itself that iguana are more attracted to bright color insects as compared to dull color insects. So, the only possible reason could be some distinctive characteristics of the paint which is used for coloring the drab.

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms