What was the domain of the second life on earth? Describe its cellular characteristics

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin

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?