Two enzymes catalyze the same reaction. enzyme a converts substrate to product twice as fast as enzyme b. which enzyme has the lower activation energy or energy barrier: a or b?

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?

If a young male's body is just beginning the process of producing sperm, when is it likely that he would ejaculate mature, viable sperm"

What do you call the long folded tube inside the body attached to the stomach where nutrients in the food are absorbed?