This is a mass that remains at the original site and can be surgically removed

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

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