The main function of the respitory system is to a-break down food

b- exchange gases with the surronding

c- deliver nutrients to cells tht need them

d-store waste products

idk which one

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

Why do cells appear different in distilled water than they do in 10% salt water?