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50) Discoveries of extrasolar planets have shown us that

29) According to the theory of special relativity, which of the following properties can be measured to have different values by different observers?

39) Which of the following factors influence the surface habitability of a planet?

1) What other places in the solar system have habitats that might support life?

10) Approximately how many exoplanets have been discovered to date?

5) In order to maximize your chance of seeing a faint, cooler exoplanet next to a brighter, hotter star, you should observe

6) The only place outside of Earth where there is irrefutable evidence for (ancient, microbial) life is

You are a nurse and go to your patient’s room to do routine vital signs monitoring and find that your patient’s bedtime snack was not eaten. This should alert the you to check and assess for:  

Match the indicated structure with the correct answer.

The normal pacemakers of the heart are cells located in the…