How can we select stars whose planets are likely homes for life?

What will be an ideal response?


We assume the planet must be in a stable orbit. Most binary star systems wouldn't be good candidates unless the stars are very close together or very far apart. Main-sequence stars of types G, K, and M are the best candidates because they have long lifetimes. The star's temperature is also important, if the planet is to have liquid water on its surface. A low-luminosity star has a small and narrow habitable zone, whereas a high-luminosity star has a large and wide one.

Biology & Microbiology

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If properly constructed, a Winogradsky column can be used to isolate pure cultures

Indicate whether the statement is true or false.

Biology & Microbiology

A visible red streak in an infected hand or foot is referred to as

A. septicemia. B. bacteremia. C. lymphangitis. D. edema.

Biology & Microbiology

Obesity corresponds to a BMI over ____

a. 20 b. 22 c. 25 d. 28 e. 30

Biology & Microbiology

How much of the energy that reaches Earth's outer atmosphere from the sun is available for photosynthesis in plants at Earth's surface?

A) 44% B) 1% C) 95% D) 55% E) 71%

Biology & Microbiology