During which phase of mitosis are sister chromatids separated from each other?

During anaphase of mitosis are sister chromatids separated from each other

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.