Climate change is expected to affect tropical and temperate species differently. Select the statement that best describes which type of species is more at risk, and why.

A. Tropical species, because they have a narrow performance curve with a small thermal safety margin.
B. Tropical species, because they have a broad performance curve with a large thermal safety margin.
C. Temperate species, because they have a narrow performance curve with a small thermal safety margin.
D. Temperate species, because they have a braod performance curve with a large thermal safety margin.

Based on your knowledge of industrialization, which of the following statements best describes what is happening in this photo taken in the us around 1910? a. the children pictured here likely worked a 4 - 6-hour shift after school, five days a week, for minimum wage. b. the children pictured here are working illegally, as child labor was prohibited in the late 1880s. the children pictured here likely worked a 12-hour day, six days a week, for about one dollar a week d. the children pictured here likely earned good wages, were protected from risk of injury, and were likely to have a successful, long-term career in this industry.