Hypothesize on a possible way that the mass extinction at the end of the Mesozoic Era contributed to mammals become the dominant life-forms during the Cenozoic Era.

Orange juice has a lower or higher viscosity than chocolate syrup

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Organelles are 1. responsible for producing power for the cell 2. tiny structures in the cell that carry out the cell's activities 3. responsible for digestion in the cell 4. found outside of the membrane