Which layer of earth acts as a very effective “insulator,” because it’s made of rock?

Scientific method and data analysisa biology student wanted to determine if there is a relationship between resting heart rate and bodyheight. she gathered information from 12 classmates and constructed the table below.resting heart rate (beats per minute)student height (cm)155. 156156165180180190194195

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

Which blood cell spend most of their time in the lymphatic system?