A scientist sets up terrariums in a laboratory and observes the growth of lizards in each terrarium. Which of the following observations could be used as evidence that the amount of space in an environment can affect an animal's growth?(1 point)

Question

Responses

Two different species of lizard grow to different sizes in the same terrarium.
Two different species of lizard grow to different sizes in the same terrarium.

Two lizards of the same species grow to different sizes in different-sized terrariums.
Two lizards of the same species grow to different sizes in different-sized terrariums.

Two lizards of the same species grow to different sizes in the same terrarium.
Two lizards of the same species grow to different sizes in the same terrarium.

Two lizards of the same species grow to different sizes in terrariums with different food supplies.

Answer 1

The most suitable observation that could be used as evidence that the amount of space in an environment can affect an animal's growth is:

Two lizards of the same species grow to different sizes in different-sized terrariums.

This observation directly indicates that changes in the size of the terrarium (space) affect the growth of lizards of the same species, controlling for other variables.