I am a multicellular, photosynthetic, marine, organism with motile sperm cells. I grow very fast and live my adult life attached to rocks being pounded by waves. What is the organism?

What is histamine and what is its role in allergic reactions

When water freezes, it . contracts expands

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?