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?

The projections that are released to protect its body from the acid are trichocysts. These trichocysts are released for the self-defense of the paramecium.

good day son

The correct answer is - trichocysts

Explanation:

The picric acid is a organic compound that tastes bitter and explosive in nature. When its dilute solution is added to the Paramecium, it reacts against the picric acid by releasing transparent spine-like projections called trichocysts for its self-defence.

Trichocysts form a barrier around body of the Paramecium to protect its body from the picric acid.

the transfer for conduction is the heat transfering from the liquid to the spoon

the transfer for convection is the heat rising from the liquid to the air

the transfer for radiation is the heat going through the sides of the cup and to the air

at least that is what i would do

the farther away the object is from the central star (the sun) it's gravitainal pull on the object is weaker when it is farther

explanation: