This is the back of my calf and i’m wondering if that is a stretch mark .. if it is, why do i have it?

Acaesar salad uses blank as its fat

When studying heredity, what is the relationship of dna based and traits? super urgent !

Look at the graph about the barriers to working out. what would 20 percent of the population report as a barrier for working out? inability to devote thirty minutes a day to working out lack of interest with creating a detailed workout schedule not having enough money to pay for yearly gym membership living in a community that does not have parks or a gym facility