1. Scientists often work together in teams to solve problems. In 2009, an influenza virus emerged from
pigs that went on to infect an estimated 24 percent
of the world human population. How could
biologists from a variety of fields contribute to
studying this widespread disease and developing a
vention
treat mant prevention
ar cure

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

answer( increase) their individual contractile activity;