There are two types of homeostatic control systems in the body. these include positive and negative feedback systems. most feedback systems are negative, meaning that the original stimulus is reversed. during a positive feedback loop, the original stimulus is intensified. what is a good example of a positive feedback loop? a) childbirth b) maintaining blood pressure c) blood glucose concentrations in body d) body shivering in response to being cold

Nitrofurantoin used during the fifth week of pregnancy places the neonate at risk for which condition?

What is the next step in muscle contraction after the actin changes shape? (apex)

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?