A is anything from the internal or external environment that causes an imbalance in the internal conditions of a cell, organ, organ system, or organism.
(1 Point)
Control Center
Effector
Receptor
Stimulus

Which blood cell spend most of their time in the lymphatic system?

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 do nitrifying bacteria convert