Question 528036
Text 1
Flamingos are known for their vibrant pink coloring, but they’re actually born with gray feathers. Their pink color comes from eating brine shrimp, but brine shrimp aren’t naturally pink either. Animals can’t produce carotenoids, the pigments that provide the pink hue. The algae that brine shrimp feed on, however, can produce these pigments. Thus, the pinker the flamingo, the more shrimp it has eaten.
Text 2
Ecologist Juan Amat has found that flamingos apply a kind of makeup to make themselves appear pinker. A gland near their tail contains pigments that come from the food they eat. When the flamingos groom themselves using the pigments, their feathers become pinker. Flamingos may do this to improve their success during mating season, when they would benefit from looking pinker.
Based on the texts, how would the ecologist in Text 2 most likely respond to the author’s conclusion in Text 1?
By emphasizing that flamingos’ tail feathers are pinker than their other feathers are
By claiming that the coloring of flamingos’ feathers doesn’t change significantly enough for most observers to notice
By pointing out that the amount of shrimp eaten isn’t the only thing that influences flamingos’ coloring
By arguing that flamingos’ diet doesn’t include much shrimp except during mating season
