Multiple Choice
_______ secrete external shells of calcium carbonate, which formed much of the world's limestone, as used in the ancient pyramids of Egypt.Long pseudopods extend through pores in the shells for locomotion.
A) Foraminiferans
B) Diatoms
C) Dinoflagellates
D) Water molds
E) Radiolarians
Correct Answer:

Verified
Correct Answer:
Verified
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