This is a prediction question requiring you to apply classification principles. The Introduction defines ectotherms as animals that "rely on external heat sources to regulate their body temperature." Since frogs are ectotherms (stated in the question), they should behave like the other ectotherm in the study—the Lizard. The Lizard's metabolic rate increases with environmental temperature because ectotherms become more physiologically active as they warm up (their enzymes work faster, chemical reactions speed up). Choice B correctly predicts the Frog would resemble the Lizard's increasing curve. Choice A (Mouse curve) would apply to endotherms, not ectotherms. Choices C and D (horizontal, vertical) aren't biologically realistic. Pro tip: When predicting behavior of organisms in the same category, expect similar patterns.

This is a scientific reasoning question requiring you to apply stated principles to data. The introduction explicitly states "S-waves (Secondary waves): Shear waves that travel only through solids." Figure 1 shows S-wave velocity drops to 0 km/s at 2,900 km (the Outer Core) and remains 0 throughout. If S-waves cannot travel through a material, and S-waves only travel through solids, then that material cannot be solid. Given Figure 2 shows high density (~10 g/cm³) at this depth, the material is too dense to be gas or vacuum. The only remaining option is liquid. Choice B is correct. Choice A (solid) contradicts the zero S-wave velocity. Choices C and D (gas, vacuum) contradict the high density shown in Figure 2. Pro tip: Combine information from introduction, figures, and logical reasoning.

This is a prediction question requiring you to apply learned principles to new scenarios. The introduction established that "S-waves... travel only through solids." Therefore, if a layer contains liquid (magma), S-waves cannot travel through it, meaning velocity must be 0 km/s. This is exactly what happens in the Outer Core (liquid) where S-wave velocity is 0. Choice B correctly applies this principle. Choice A (spike) contradicts the inability to travel through liquids. Choice C (remain unchanged) ignores the liquid's effect. Choice D (equal to P-wave) is wrong because P-waves CAN travel through liquids. Pro tip: Apply established rules from the introduction to new hypothetical situations.

This is a defense of argument question asking how a scientist would respond to criticism. Scientist 3's core claim is that Newtonian gravity works at solar system scales (high acceleration) but fails at galactic scales ("accelerations are incredibly low < 10⁻¹⁰ m/s²"). The natural defense against "you're changing physics" is "we've never actually tested physics at these extreme conditions." Choice A correctly predicts this defense—the untested regime justifies modification. Choice B (WIMPs detected) would support Scientist 1, not defend Scientist 3. Choice C (light emission) is irrelevant to gravity laws. Choice D (universe age) is irrelevant. Pro tip: Use a scientist's core argument to predict their defense against criticism.

Mechanism 1 is better supported by the data because it correctly identifies warm ocean waters as key to hurricane development. The data shows hurricanes forming over warm waters, which directly validates Mechanism 1's prediction about thermal energy requirements. Mechanism 2 claims atmospheric conditions are more important, but this explanation doesn't account for the observed strong association between warm sea surface temperatures and hurricane formation locations. The evidence clearly demonstrates that ocean thermal energy, not just atmospheric factors, drives hurricane genesis.

Model 1 is supported by the data because it correctly predicts that pressure increases proportionally with temperature. The experimental data shows pressure increasing with temperature, which directly validates Model 1's prediction of proportional relationships. Model 2 claims pressure is constant regardless of temperature, which is directly contradicted by the observed temperature-pressure correlation. The evidence clearly demonstrates a temperature-dependent pressure relationship rather than temperature independence.

Model 1 is best supported by the data because it correctly predicts increased carbon emissions from deforestation. The data shows higher carbon emissions following deforestation, which directly validates Model 1's prediction about forest carbon loss. Model 2 claims deforestation leads to biodiversity loss, which may also be true but doesn't explain the specific carbon emission data presented. The evidence clearly demonstrates that deforestation increases atmospheric carbon, supporting Model 1's carbon-focused prediction over Model 2's biodiversity emphasis.

Model 1 is best supported by the data because it correctly predicts that climate change increases fire frequency through higher temperatures. The data shows more fires in regions with higher temperatures, which directly validates Model 1's climate-fire relationship. Model 2 attributes fires to human activity, but this explanation doesn't account for the observed temperature-fire correlation across regions. The evidence clearly demonstrates that temperature increases, consistent with climate change, drive the observed fire frequency patterns.

Theory 1 is best supported by the evidence because it correctly predicts similar compositions between Earth and the Moon. The evidence shows similar isotopic compositions between Earth and the Moon, which directly supports Theory 1's collision hypothesis that would create debris with Earth-like composition. Theory 2 suggests independent formation and gravitational capture, which would predict different isotopic signatures rather than the observed similarity. The compositional evidence clearly indicates a shared origin rather than separate formation.

Hypothesis 1 is better supported because it correctly identifies fossil fuel combustion as the main driver of atmospheric CO2 increase. The data shows a strong link between fossil fuel use and CO2 levels, which directly validates Hypothesis 1's prediction about combustion emissions. Hypothesis 2 suggests deforestation as the primary factor, but this explanation doesn't account for the observed strong correlation between fossil fuel consumption and atmospheric CO2 concentrations. The evidence clearly demonstrates that energy-related emissions, not land use changes alone, drive the observed CO2 trends.