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)
Responses
A disease caused a decrease in the proportion of brown toads.
A disease caused a decrease in the proportion of brown toads.
The environment changed such that toads that can jump higher into the trees to survive better.
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.
The environment changed such that green toads can blend into their surroundings better.
Pollution caused a decrease in the proportion of brown toads.
Pollution caused a decrease in the proportion of brown toads.
The environment changed such that green toads can blend into their surroundings better.
The most likely explanation for the change in proportion of green toads increasing from 20% to 50% over 50 years is that the environment changed in a way that green toads can blend into their surroundings better.
To determine the most likely explanation for the change in proportion of brown to green toads in the population, we need to consider the information provided. The proportion of green toads increased from 20% to 50% over a period of 50 years.
Statement 1 suggests that a disease caused a decrease in the proportion of brown toads. However, this statement does not explain the increase in the proportion of green toads. Therefore, we can rule out statement 1.
Statement 2 states that the environment changed in a way that toads that can jump higher into the trees survive better. This statement does not directly explain the increase in the proportion of green toads. Therefore, we can rule out statement 2.
Statement 3 suggests that the environment changed in a way that green toads can blend into their surroundings better. This statement aligns with the increase in the proportion of green toads, as being better able to blend into their surroundings would give green toads a survival advantage. Therefore, statement 3 is the most likely explanation for the change in proportion.
Statement 4 suggests that pollution caused a decrease in the proportion of brown toads. While pollution may have an impact on the population, it does not directly explain the increase in the proportion of green toads. Therefore, we can rule out statement 4.
Based on this analysis, the most likely explanation for the change in the proportion of brown to green toads is that the environment changed in a way that green toads can blend into their surroundings better.