Sometimes, two atoms of the same element have different numbers of neutrons. what is this known as? valence electrons orbits radiation isotopes

Because of its structure the cell membrane is known as a phospholipid ? a. bilayer b. molecule c. fluid d. barrier

Researchers want to use edna to look for an invasive species in the water which of the steps would be likely do last

The rapid decomposition of organic matter produces evidence which supports: the slow accumulation of coal deposits long ages of the earth rapid burial of vast amounts of vegetation biblical account of noah's flood