Question

Problem
In a certain population of fish, individuals can have either large, medium, or small bodies.
At some point in time, the fish population experienced a change in its environment. This change led to a shift in the number of individuals with different body sizes in the population.
The table below shows the percentage of fish with large, medium, or small bodies both before, and multiple years after, the environmental change.
Before environmental change After environmental change
Large body size


Medium body size


Small body size


Which trait was most likely to help fish survive and reproduce after the environmental change?
Choose 1 answer:
Choose 1 answer:
(Choice A) large body size
A
large body size
(Choice B) medium body size
B
medium body size
(Choice C) small body size
C
small body size

Answer 1

ARE YOU SURE

Answer 2

(Choice C) small body size

After the environmental change, there was likely a decrease in the availability of resources or increase in competition, making it advantageous for the fish to have smaller bodies. Small body size would allow them to access niche habitats or resources that larger individuals may not be able to reach, increasing their chances of survival and reproduction.

Answer 3

Yes, I am confident that small body size would be the most advantageous trait for fish to survive and reproduce after the environmental change. It would allow them to adapt to the new conditions and potentially outcompete larger individuals for resources.