Color of Stars

What is the correct order of the surface temperature of the stars, starting from the highest to the lowest?

A) Y, Z, W, X
B) X, W, Z, Y
C) Y, X, W, Z
D) Z, W, X, Y

What are some possible short and long term medical concerns for crew members on longer space exploration trips

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

Cold case files recently began re-investigating an old murder case. the murder took place in the park; a young man, james, was hit over the head with a brick and killed. police suspected the jealous former boyfriend of james' wife, karen. whoever killed james may have washed their hands in a near-by bird bath as detectives found blood in the bird bath. since the murder took place before dna fingerprinting was available, the suspected killer, ronnie, went free. detectives are now reviewing the blood evidence using dna fingerprinting. based on the dna fingerprints of all possible suspects, who is james' killer?