8. Extinction of a species could result from *
1
evolution of a type of behavior that produces greater reproductive success
synthesis of a hormone that controls cellular communication
limited genetic variability in the species
fewer unfavorable mutations in the species

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

In which block of the periodic table is uranium (u) found? s blockd blockp blockf block

Identify the correct mole ratio for each substance. sodium chloride (nacl) na: cl = 1: ammonium nitrate (nhno) h: o = 4: