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

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

Answer 1

The 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 directly compares how the size of the terrarium (amount of space) influences the growth of the same species of lizard, providing evidence for the effect of space on growth. The other options involve factors (like food supply or different species) that do not isolate the impact of space alone.