Why is it virtually impossible to stamp out a disease caused by a zoonotic virus?
A. You'd have to drive the vector organism extinct to do so.
B. Many vector organisms have multiple stages of their life cycle that can carry a zoonotic virus, which complicates controlling the vector-borne transmission.
C. Many viruses transmitted in this manner may utilize more than one vector organism.
D.
Many zoonotic viruses may be able to reside in more than one host organism, complicating control measures.
E. All of the above are correct.
E
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Unicellular fungi are better known as:
A. yeasts. B. bacteria. C. buds. D. hyphae. E. mushrooms.
A cuboidal shaped cell with six sides is 1 mm × 1 mm × 1 mm. What is the volume and the surface area of the cell?
A. 3 mm3 : 3 mm2 B. 1 mm3 : 3 mm2 C. 3 mm3 : 1 mm2 D. 1 mm3 : 6 mm2
Lichens are mutualisms between
A. fungi and a green plant. B. yeast and another fungi. C. fungi and a mycorrhizae. D. mycorrhizae and yeast. E. fungi and an alga.
An unprotected species resembling others that are distasteful is an example of which type of mimicry?
A. Batesian B. Aposematic C. Competitive D. Müllerian