What do Echinococcus granulosus, Entamoeba histolytica, and Enterobius vermicularis have in common?
A) They are transmitted by insect vectors.
B) They live in the intestines of their definitive host.
C) They are intracellular parasites.
D) They cause zoonoses in humans.
E) They are diagnosed by examination of a blood smear.
B
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How do protists provide evidence for the step-wise evolution of mitosis?
A. In some protists the nuclear membrane fails to breakdown during mitosis. B. Protists use conjugation instead of mitosis. C. Only meiosis occurs in protists. D. Mitosis has not been observed in any protist species.
Which type of cell uses cell plate formation to divide the cytoplasm?
a. Animal b. Plant c. Both d. Neither
The "cuddle hormone," secreted in greater quantities following sexual contact, is
a. testosterone. b. estrogen. c. follicle stimulating hormone. d. melatonin. e. oxytocin.
Polymers that contain sugars ... (3)
What will be an ideal response?