This system is difficult to work with because it has six different parameters, all of which affect the behavior of the system. However, each of them has a biological meaning. Write a brief explanation of what each parameter (r1, r2, d, j, w, h, k) means and specify the appropriate units for each one. (Assume that time is measured in years, so that for example, the units of N are "prey per year" and the units of P are "predators per year.")

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

Nucleic acid certain protein cell membranes certain carbohydrates

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?