medium · Act science

Two scientists debate why a desert lizard species is most active at dawn and dusk. Scientist 1 says the lizards avoid midday because high air temperatures would overheat their bodies, since they cannot cool themselves internally. Scientist 2 says the lizards are active at dawn and dusk because that is when their insect prey emerges, regardless of temperature. Which finding would most strongly support Scientist 1 over Scientist 2?

1. Lizards were observed eating insects during the dawn activity period
2. Insect prey was found to be equally abundant at midday and at dusk
3. Lizards and their insect prey both became active at the same times
4. Lizards moved to shade whenever their body temperature rose

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