Read the information about an ecosystem created by a student.

Question

A student creates an ant ecosystem within a fish tank. The fish tank has soil in which the ants carve their tunnels. The student places pieces of fruits and vegetables in the tank every three days. The student adds five drops of water to a cotton ball every day to provide the ants with water. The student keeps the ant ecosystem in his bedroom.

Which change made by the student would have the LARGEST impact on the stability of the ants' ecosystem?

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a
The student could move the fish tank to another room.
b
The student could create more tunnels in the soil.
c
The student could provide fruits and vegetables every ten days.
d
The student could add more water drops to the cotton ball.

Answer 1

The largest impact on the stability of the ants' ecosystem would be changing the frequency of providing fruits and vegetables. If the student were to provide fruits and vegetables every ten days instead of every three days, the ants may not have enough food to sustain themselves, which could disrupt the balance of their ecosystem.