The stomach has three types of contractions: There are rhythmic, 3 per minute, synchronized contractions in the lower part of the stomach, which create waves of food particles and juice which splash against a closed sphincter muscle (the pyloric sphincter) to grind the food into small particles.
7 What is the gestation period, how many babies do they have, and when are they weaned? 1  The gestation period for rats is 19â22 days, for mice it is 17â21 days.  Rats and mice average 8â12 babies in a litter, but can have as few as 1 or as many as 20.
Snakes eat mice the mice eat grain crops if the crops are plentiful what will happen? Well mice are fast breeders so they will eat the crops. And snakes can eat lots of mice but they have lots of babys and they can have 10-13 babys every 3 weeks so its very harâ¦d to get them all and they will eat lots of the crops. But their cute =D The snake population will increase. 7 people found this useful.