Q9 Imagine a different system in which toads had a wide rang

Q9. Imagine a different system in which toads had a wide range of variation in color. In some ponds, most of the toads are light in color. In other ponds, the average color is fairly dark. From the options below, select which represent TESTABLE hypotheses that could explain this difference in coloration.

Check all that apply:

(a) A predator that is present in some ponds prefers one color to the other.

(b) Female toads in some ponds prefer darker toads, while females in another pond prefer lighter toads.

(c) Toad color is determined by food quality, which varies pond to pond.

(d) Toads can change their color, based on their stress level.

I was thinking that a, b, c, are testable hypothesisi and not d.

Solution

Answer:

(c) Toad color is determined by food quality, which varies pond to pond.

(d) Toads can change their color, based on their stress level.

Toad color may be changed according to quality of the water from which they get food and also change their color as water is evaporated from the pond and getting more concentrated.