Multiple Choice
The gritty substance you may feel on your teeth after using toothpaste is actually
A) small deposits of sand.
B) diatomaceous earth.
C) cellulose from dinoflagellates.
D) a synthetic abrasive.
E) derived from foraminiferans.
Correct Answer:

Verified
Correct Answer:
Verified
Q9: Why can red algae grow at deeper
Q10: In nutrient-rich water,photosynthetic protists may undergo population
Q10: _ are aquatic heterotrophs and autotrophs with
Q51: Select the best choice for the following
Q51: Which feature is shared by euglenoids and
Q54: Which of the following specialized structures is
Q59: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8664/.jpg" alt=" Use the figure
Q60: Which major group of eukaryotes are protists
Q61: Select the best choice for the following
Q61: Are humans responsible for neurotoxic shellfish poisoning?