Which process is responsible for causing menstruation

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?

Lactic acid and energy are produced in muscle cells during choose 1 aerobic respiration cellular respiration anaerobic respiration cellular division

During the process of two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.