When a student adds a few drops of diluted picric acid to a paramecium slide, he observes that the paramecium releases some transparent spine-like projections to protect its body from the acid. What is the significance of these projections?
a.The projections are trichocysts, released for the self-defense of the paramecium.
b.The projections are pseudopodia, released for the locomotion of the paramecium.
c.The projections are cilia, released for the locomotion of the paramecium.
a.The projections are trichocysts, released for the self-defense of the paramecium.
b.The projections are pseudopodia, released for the locomotion of the paramecium.
c.The projections are cilia, released for the locomotion of the paramecium.