Paramecium, possess that counteract the effects of osmosis. a) oral grooves b) ciliated pellicle c) contractile vacuoles d) micro and macro nuclei

C

Explanation:

Contractile Vacuoles are a cellular structure that regulates osmosis.

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.