The oldest rocks on earth are located on continents and are about 3.5 million years old. Explain why the oldest rocks of the ocean floor are only 180 million years old

25. what does meiosis create? haploids or diploid? somatic cells or gametes?

What initially causes a nerve impulse? release of enzymes out of the neuron movement of chemicals into the dendrites of the neuron pathogens attacking the dendrites of the neuron red blood cells bathing the neuron

Approximately percent of the energy created by cell metabolism is used by the body to carry on its normal functions, such as respiration, digestion, reproduction, muscular movement, circulation, and cellular regrowth.