A cyst formed by a protist functions
A. as a protective mechanism against adverse changes in the environment.
B. in transfer from one host to the next.
C. in repair of damage to the cell envelope.
D. as a protective mechanism against adverse changes in the environment and in transfer from one host to the next.
Answer: D
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The colorless rootlike projections of mosses, liverworts, and hornworts, which anchor them to the substrate are called
A. rhizoids. B. tap roots. C. fibrous roots. D. specialized roots. E. storage roots.
A protozoan having a flagellum would be classified in the genus ________.
A. Plasmodium B. Entamoeba C. Toxoplasma D. Enterobius E. Trypanosoma
The gut cavity may be a fully lined coelom or a partially lined __________. Fill in the blank(s) with the appropriate word(s)
Ion gradients across the membrane drive numerous cellular functions.
Answer the following statement true (T) or false (F)