What is the primary advantage of sexual reproduction when compared to asexual reproducion

Blank is the amount of energy in a sound wave per unit of time and is also related to the loudness of a sound

Which labels do x and y represent? x: scattered bundles y: multiples of four or five x: scattered bundles y: multiples of three x: bundles in a ring y: multiples of four or five x: bundles in a ring y: multiples of three

Zachary has been trying to work on an essay for almost three hours, be he can't seem to focus for more than 15 or 20 minutes at a time. what should he do so that the quality of his work doesnt suffer because of poor concentration and lack of energy