In an ecosystem, there are two color varieties within a species of toads: brown and green. Over 50 years, the proportion of the population that is green increases from 20% to 50%. Which statement is the most likely to explain this change? (1 point)

A disease caused a decrease in the proportion of brown loads

Pollution caused a decrease in the proportion of brown loads.

The environment changed such that toads that can jump higher into the trees to survive better.

The environment changed such that green toads can blend into their surroundings better.

1 answer

The most likely statement to explain the change in the proportion of green toads from 20% to 50% is:

The environment changed such that green toads can blend into their surroundings better.

This explanation suggests that green toads have a survival advantage in their environment due to their camouflage, which would lead to an increase in their population proportion over time, while brown toads may not have the same adaptive advantage.