Which phrase best describes a biogeochemical cycle?
a. the movement of a chemical substance between the solid, liquid and gaseous states of matter
b. the movement of a chemical substance between plants an animals
c. the movement of a chemical substance through the the biotic and abiotic parts of earth
d. the movement of a chemical substance through earths bodies of water

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to

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?

Describe the function of the endomembrane system? what organelles are involved?