Aliyah’s dog gave birth to 7 puppies 3 days ago. The dad of the puppies is all black and mom is all white. However, when she checked, there were 2 all black puppy, 2 white, 2 with black and white spots and 1 brown fur puppy. How was that possible? Explain.

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?

Diagram of the evolution of land plants?

Why are common names a problem for scientist?