16. When your body needs additional energy, like when you run, things happen in your body systems to give you the additional food and oxygen you need in your cells. Which of the following is happening to send more energy to cells when you are running? 1. Your skeletal system gets stronger. II. Your digestive system breaks down food faster. III. Your heart pumps blood with more force. IV. Your lungs work harder and faster.​

The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

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?

Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false