There are twenty amino acids in living organisms. ten of these are referred to as essential amino acids. why are they called essential amino acids? these amino acids are the only ones that are important for the body to function properly. these amino acids cannot be made by the human body and must be consumed in one’s diet. these amino acids are the only ones that are made by the human body.

Grade 91.)the gravitational pull from the moon words).2.) what is the rate of gravitational 3.)if you drop a hammer, is it more likely to drop handle side down, head side down, or equal chance that it will land either way? why? 4.)a car moves 60km east and 90km west.a.) what is the distance the car traveled? b.) what is the car's displacement5.)what is the average velocity of a car that moved 60 km south in 3 hours? 6.) a car starts from rest and acceleration to 60 m/s over a time of 5 seconds. what is the acceleration of the car? 7.)what is the speed of an object at rest?