1. If the model presented above is correct, on the average, how many high tides and how many low tides should there be in each 24 hour period?

the sphincter muscles at the end of the digestive tract is the anus.

the statement is true

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.