Which of the following occurs when a sodium atom forms a positively charged sodium ion (Na+) ?

the atom loses one proton

the atom loses one electron

the atom gains one electron

the atom gains one proton

A semipermeable membrane has a 4 percent salt solution on the right side and a 12 percent salt solution on the left side. What will most likely occur?

The cerebral cortex accounts for approximately what percentage of the brain's total mass?

Explain how the Amish are an example of the founder effect.

Process in which cell divides into two identical daughter cells

which theory of plate movement involves magma rising all the way from the lower mantle

Which outcome occurs when bonds between atoms are broken or formed? A. a physical change B. an element increasing in size C. a chemical change D. a change of state

What events caused the formation of most islands in the South Pacific?

A new species of plant arises as an allopolyploid from two other plants, one with a diploid number of 14 and one with a diploid number of 18. what would the diploid number of the new species most likely be?

Where do Earth's convection currents occur? the lithosphere tectonic plates the asthenosphere the subduction zone

One disadvantage to experimental research is that experimental conditions do not always reflect reality. true or false