Question

scientists focus their research and testing on their area of expertise. for example, astronomers may interpret satellite images. biologists may observe the effects of environmental changes on organisms, and geologists may measure tectonic plate boundary movement. there are several differences between these scientists. however, there are also similarities. how are all scientists similar?
all scientists pursue explanations about the natural world.
all scientists test variables in a laboratory setting
all scientists use expensive equipment
all scientists use controlled experiments to determine the relationship between variables

Explanation:

Scientists across different fields aim to understand and explain natural - world phenomena. Not all test variables in a lab (e.g., astronomers observe space), not all use expensive equipment, and not all use controlled experiments (e.g., some field - based research).

Answer:

All scientists pursue explanations about the natural world.