Members of this group of protozoa are decomposers responsible for these infectious diseases: giardiasis (gastroenteritis), trichomoniasis (sexually transmitted disease), and trypanosomiasis (sleeping sickness—Trypanosoma gambiense).
A. flagellated protozoa
B. sarcodina
C. ciliates
D. All of these answers are correct.
A. flagellated protozoa
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Apes and humans together make up a group called
A. hominids. B. hominoids. C. Homo sapiens. D. habilis. E. prosimians.
David has just been told by his doctor that he has a malignant growth. Which of the following
is true?
a. He has a noncancerous tumor. b. The tumor cells are spreading through his body. c. He has a single mutation in one of his oncogenes. d. both (b) and (c)
Which statement about euglenoids is FALSE?
a. They have a pellicle. b. They are unicellular. c. They are all photosynthetic. d. Their cells contain mitochondria. e. They have 9 + 2 arrangement of microtubules in their flagella.
Figure 4.9
The part labeled "B" in the accompanying figure is ____.
A. a nucleus B. a Golgi body C. endoplasmic reticulum D. a vacuole E. a nucleoid