How does the force of gravity move objects in the solar system?

Which sentence is an example of a strong conclusion to an autobiography? a. i stayed after school three days in a row to practice onstage in the auditorium. b. i knew i would have to practice all week to memorize my dance for the recital. c. after the recital was over, i knew practicing was worth it, and i was looking forward to my next big challenge. d. on opening night, i danced in front of a packed auditorium.

How does the study of genetic disorders such as pku biologists understand normal alleles?

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays