1. How is echolocation used by animals and in sonar?

What is the result of procrastination? a.having less time to work on tasks b.being able to plan your tasks more effectively c.having more energy to work on tasks d.getting tasks done promptly

Answer these and you will be marked this is for 20 points

Health and cardio respiratory fitness occurs when the heart is working, at minimum, 50 percent of heart rate reserve. true or false