A student sees several ants walking up a wall following the exact same trail that an ant took earlier. She wants to apply the scientific method to determine how the ants detected the trail. Which of these steps would come first in her application of the scientific method?

Witch type of microscope is used to view very small cell components like proteins and dna?

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?

What best describes the dropping height of a ball that bounces back up to a height of 45 cm